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This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.\u003c\/li\u003e\u003cli\u003eA TUMBLER THAT'S MADE TO LAST – Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. An excellent STEM activity for kids.\u003c\/li\u003e\u003cli\u003eA COMPLETE HOBBY TUMBLING KIT - Everything you need to create polished gemstones: the tumbler, four polishing grits, sifter, nine types of real rough gemstones, plus a detailed full-color learning guide. Makes a great gift for girls and boys!\u003c\/li\u003e\u003cli\u003eEASY TO USE – Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, set it and forget it! This is a great gift for kids.\u003c\/li\u003e\u003cli\u003eAWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eImportant information\u003c\/h4\u003e\u003ch5\u003eSafety Information\u003c\/h5\u003e\u003cp\u003eChoking Hazard - Small Parts\u003c\/p\u003e\u003ch5\u003eDirections\u003c\/h5\u003e\u003cp\u003e1. Add gemstones and grits to the tumbler barrel. 2. Fill the barrel with water. 3. Set the timer for the desired tumbling duration. 4. Turn on the tumbler and let it run. 5. After the cycle is complete, remove the barrel, drain the water, and replace the gemstones and grits with the next set. 6. Repeat the process until all grits have been used. 7. Follow the learning guide for polishing and creating jewelry with the finished gemstones.\u003c\/p\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003ch5\u003eProduct description\u003c\/h5\u003e\u003ch5\u003eNational Geographic Hobby Rock Tumbler Kit\u003c\/h5\u003e\u003cp\u003eIncludes everything you need to create polished gemstones: the tumbler, four polishing grits, sifter, nine types of real rough gemstones, plus a detailed full-color learning guide. Makes a great gift for girls and boys!\u003c\/p\u003e\u003cp\u003eThis Hobby Rock Tumbler Kit from National Geographic includes all the accessories you’ll need to start polishing dazzling gems. Kids can use the included jewelry fastenings to create beautiful homemade jewelry!\u003c\/p\u003e\u003cp\u003eThis high-quality tumbling machine boasts a powerful motor that will last for years; an automatic shutoff timer; and a noise-reducing, leak-proof barrel with stainless steel lid. Plus, everything is included to get started: a 1\/2 pound of assorted stones from around the world, 4 stages of polishing media, and jewelry fastenings to you can create your own unique wearables with your tumbled gems.\u003c\/p\u003e\u003cp\u003eRock tumbling is a fun activity for children of all ages and promotes an interest in geology and science! Join National Geographic as we inspire future generations by showing them the wonders of the natural world.\u003c\/p\u003e\u003cp\u003eWe make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world\u0026#039;s largest nonprofit scientific and educational organizations.\u003c\/p\u003e\u003cdiv style=\\\"display:flex;flex-wrap:wrap;gap:0;margin:0;padding:0;line-height:0;font-size:0;\\\"\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/75130fad-fcd6-42a1-94a2-4444a5f1200b.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/afbc0b7a-502b-42b9-a31f-4907cedc25fe.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/16de1f6f-c4ad-4763-ad00-42806cec2a4e.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/87204a78-19fd-498e-88f6-eb423dc515c5.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/63c5a9e5-06e0-4efa-9aca-7361f5f69f1b.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003c\/div\u003e\u003ch4\u003eFrom the Brand\u003c\/h4\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/a283c23c-ec9e-45e1-8457-2a5761a7dea4.__CR0,0,1464,625_PT0_SX1464_V1___.jpg\\\" class=\\\"aplus-img\\\" style=\\\"max-width:100%;height:auto;display:block;margin:0!important;padding:0!important;border:0;vertical-align:top;line-height:0;font-size:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003ch5\u003eSpring Favorites\u003c\/h5\u003e\u003ch5\u003eNew Products \u0026amp; Best Sellers\u003c\/h5\u003e\u003ch5\u003eScience Kits\u003c\/h5\u003e\u003ch5\u003eEarly Learning\u003c\/h5\u003e\u003ch5\u003eCraft Kits\u003c\/h5\u003e\u003ch5\u003eRock Tumbling Kits\u003c\/h5\u003e\u003ch5\u003eCrystals\u003c\/h5\u003e\u003ch5\u003eMagic Kits\u003c\/h5\u003e\u003ch5\u003eDig Kits\u003c\/h5\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/05d9183f-de6e-43fb-a490-7a0d8f7f4d7b.__CR0,364,2000,921_PT0_SX315_V1___.jpg\\\" class=\\\"aplus-img\\\" style=\\\"max-width:100%;height:auto;display:block;margin:0!important;padding:0!important;border:0;vertical-align:top;line-height:0;font-size:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cp\u003eYour purchase has purpose!\u003c\/p\u003e\u003cp\u003eEvery purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.\u003c\/p\u003e\",\"59414866657361\":\"\u003ch4\u003eAbout This Item\u003c\/h4\u003e\u003cul class=\\\"about-this-item\\\"\u003e\u003cli\u003eCREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.\u003c\/li\u003e\u003cli\u003eBUILT TO LAST - Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. Makes an excellent STEM gift or activity for girls and boys!\u003c\/li\u003e\u003cli\u003eEVERYTHING INCLUDED - Tumbler, 4 polishing grits, sifter, Learning Guide, rough gemstones, PLUS 2 one-pound refill packs of rough gems and jasper stones.\u003c\/li\u003e\u003cli\u003eEASY TO USE - Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, so you can set it and forget it. This is a great gift for kids!\u003c\/li\u003e\u003cli\u003eAWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eImportant information\u003c\/h4\u003e\u003ch5\u003eSafety Information\u003c\/h5\u003e\u003cp\u003eChoking Hazard - Small Parts\u003c\/p\u003e\u003ch5\u003eDirections\u003c\/h5\u003e\u003cp\u003e1. Unbox the kit. 2. Place rough gemstones and grits into the tumbler barrel. 3. Fill the barrel with water. 4. Secure the lid and set the timer for the desired tumbling duration. 5. Turn on the tumbler and let it run. 6. After the cycle, empty the barrel, rinse the stones, and repeat with finer grits until polishing is complete. 7. Use the sifter to separate the polished stones from the grit. 8. Create jewelry using the included fastenings and polished stones.\u003c\/p\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003ch5\u003eProduct description\u003c\/h5\u003e\u003ch5\u003eNational Geographic Hobby Rock Tumbler Kit\u003c\/h5\u003e\u003cp\u003eStart your new rock tumbling hobby with the National Geographic Hobby Rock Tumbler Bundle! In addition to a high-quality tumbler, this kit includes four polishing grits, sifter, and two refill packs with one pound each of rough gemstones and rough jasper!\u003c\/p\u003e\u003cp\u003eGet started with the exciting hobby of rock tumbling with the National Geographic Hobby Rock Tumbler Bundle! This set includes everything you need in addition to a high-quality tumbler, including two rough gemstone refill packs (Jasper Mix and Variety). Rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Kids can use the included jewelry fastenings to create beautiful homemade jewelry!\u003c\/p\u003e\u003cp\u003eThis high-quality tumbling machine boasts a powerful motor that will last for years; an automatic shutoff timer; and a noise-reducing, leak-proof barrel with stainless steel lid. Plus, everything is included to get started: a 1\/2 pound of assorted stones from around the world, 4 stages of polishing media, and jewelry fastenings to you can create your own unique wearables with your tumbled gems. We also include two refill packs, each with one pound of raw stones for tumbling (jasper and gemstone varieties).\u003c\/p\u003e\u003cp\u003eRock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Introduce your kid to science the fun way, and join National Geographic as we inspire future generations by showing them the wonders of the natural world. Order today!\u003c\/p\u003e\u003cp\u003eWe make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.\u003c\/p\u003e\u003cdiv style=\\\"display:flex;flex-wrap:wrap;gap:0;margin:0;padding:0;line-height:0;font-size:0;\\\"\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/75130fad-fcd6-42a1-94a2-4444a5f1200b.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/afbc0b7a-502b-42b9-a31f-4907cedc25fe.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/16de1f6f-c4ad-4763-ad00-42806cec2a4e.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/87204a78-19fd-498e-88f6-eb423dc515c5.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/63c5a9e5-06e0-4efa-9aca-7361f5f69f1b.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003c\/div\u003e\u003ch4\u003eFrom the Brand\u003c\/h4\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/a283c23c-ec9e-45e1-8457-2a5761a7dea4.__CR0,0,1464,625_PT0_SX1464_V1___.jpg\\\" class=\\\"aplus-img\\\" style=\\\"max-width:100%;height:auto;display:block;margin:0!important;padding:0!important;border:0;vertical-align:top;line-height:0;font-size:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003ch5\u003eSpring Favorites\u003c\/h5\u003e\u003ch5\u003eNew Products \u0026amp; Best Sellers\u003c\/h5\u003e\u003ch5\u003eScience Kits\u003c\/h5\u003e\u003ch5\u003eEarly Learning\u003c\/h5\u003e\u003ch5\u003eCraft Kits\u003c\/h5\u003e\u003ch5\u003eRock Tumbling Kits\u003c\/h5\u003e\u003ch5\u003eCrystals\u003c\/h5\u003e\u003ch5\u003eMagic Kits\u003c\/h5\u003e\u003ch5\u003eDig Kits\u003c\/h5\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/05d9183f-de6e-43fb-a490-7a0d8f7f4d7b.__CR0,364,2000,921_PT0_SX315_V1___.jpg\\\" class=\\\"aplus-img\\\" style=\\\"max-width:100%;height:auto;display:block;margin:0!important;padding:0!important;border:0;vertical-align:top;line-height:0;font-size:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cp\u003eYour purchase has purpose!\u003c\/p\u003e\u003cp\u003eEvery purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.\u003c\/p\u003e\",\"59414866690129\":\"\u003ch4\u003eAbout This Item\u003c\/h4\u003e\u003cul class=\\\"about-this-item\\\"\u003e\u003cli\u003eCREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This robust rock polisher makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.\u003c\/li\u003e\u003cli\u003eA TUMBLER THAT'S MADE TO LAST - The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel features a stainless-steel lid.\u003c\/li\u003e\u003cli\u003eALL-IN-ONE TUMBLING KIT - You get 1\/2 pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, tumbler grit, a strainer, and our innovative new GemFoam polishing foam.\u003c\/li\u003e\u003cli\u003eUSE GEMFOAM FOR DAZZLING RESULTS - This rock tumbling kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine!\u003c\/li\u003e\u003cli\u003eAWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eImportant information\u003c\/h4\u003e\u003ch5\u003eSafety Information\u003c\/h5\u003e\u003cp\u003eFor Children 8 Years and Older with Adult Supervision\u003c\/p\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003ch5\u003eProduct description\u003c\/h5\u003e\u003ch5\u003eNational Geographic Hobby Rock Tumbler Kit\u003c\/h5\u003e\u003cp\u003eThe National Geographic Hobby Rock Tumbler Kit has all the features and accessories you’ll need to master rock tumbling, start an extraordinary rock collection, and create beautiful jewelry. Includes a durable rock tumbler, 1\/2 pound of rough stones to tumble, grit, jewelry settings, and more!\u003c\/p\u003e\u003cp\u003eThis rock tumbler kit has all the features and accessories you’ll need to master rock tumbling, start an extraordinary rock collection, and create beautiful jewelry.\u003c\/p\u003e\u003cp\u003eThis high-quality tumbling machine boasts a powerful motor that will last for years; a power-saving automatic shutoff timer; and a noise-reducing, leak-proof barrel. Plus, everything is included to get started: a 1\/2 pound of assorted stones from around the world, 4 stages of polishing media, and jewelry fastenings to you can create your own unique wearables with your tumbled gems. Plus, it also includes GemFoam, the most innovative way to add dazzling shine to your polished stones!\u003c\/p\u003e\u003cp\u003eThis high-quality tumbler allows you to set your tumbling time. When the time expires, your tumbler will automatically shut-off, allowing you to choose the perfect amount of tumble time for each grit stage. Plus, our tumbling barrel dampens sound better than most tumblers out there.\u003c\/p\u003e\u003cp\u003eThe rough rocks provided (1\/2 lb) contain nine different gemstones from around the world, and our tumbling grit is labeled by tumbling stage to make the process even easier! Choose your favorite gems and turn them into jewelry with the included necklace, key chain, ring, and two clip-on earring fastenings inside.\u003c\/p\u003e\u003cp\u003eAnd don\u0026#039;t forget about GemFoam, our exclusive new way to add dazzling shine to your polished rocks! Use GemFoam just like tumbling grit, simply add it to the barrel with your stones and water, then three days later marvel at the shine! GemFoam is reusable too, allowing you to create a truly impressive gemstone collection!\u003c\/p\u003e\u003cp\u003eWe make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.\u003c\/p\u003e\u003cdiv style=\\\"display:flex;flex-wrap:wrap;gap:0;margin:0;padding:0;line-height:0;font-size:0;\\\"\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/75130fad-fcd6-42a1-94a2-4444a5f1200b.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/afbc0b7a-502b-42b9-a31f-4907cedc25fe.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/16de1f6f-c4ad-4763-ad00-42806cec2a4e.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/87204a78-19fd-498e-88f6-eb423dc515c5.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/63c5a9e5-06e0-4efa-9aca-7361f5f69f1b.__CR0,0,2928,1200_PT0_SX1464_V1___.jpg\\\" style=\\\"flex:1 1 auto;min-width:120px;max-width:100%;height:auto;object-fit:contain;margin:0!important;padding:0!important;display:block;border:0;vertical-align:top;line-height:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003c\/div\u003e\u003ch4\u003eFrom the Brand\u003c\/h4\u003e\u003cimg src=\\\"https:\/\/m.media-amazon.com\/images\/S\/aplus-media-library-service-media\/a283c23c-ec9e-45e1-8457-2a5761a7dea4.__CR0,0,1464,625_PT0_SX1464_V1___.jpg\\\" class=\\\"aplus-img\\\" style=\\\"max-width:100%;height:auto;display:block;margin:0!important;padding:0!important;border:0;vertical-align:top;line-height:0;font-size:0;\\\" loading=\\\"lazy\\\" \/\u003e\u003ch5\u003eSpring Favorites\u003c\/h5\u003e\u003ch5\u003eNew Products \u0026amp; 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