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CREATE YOUR OWN GEMSTONES: Rock Tumbler uses a fun way to turn rough rocks into shiny, polished gems in a hobby that kids and adults alike will love!
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Science Can Rock Tumbler for Kids Rock Polisher Include Polishing Grit, 9 Raw Gemstone & Jewelry Fastening Noise-Reduced Barrel, STEM Seience Toy Birthday Gift for Kids Age 6 7 8 9 Year
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The Rock STEM Tumbler Kit – Smart Kids Planet
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NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit - Rock Polisher for Kids and Adults, Complete Rock Tumbler Kit, Durable Leak-Proof Tumbler, Rocks, Grit, and 5 Jewelry Fastenings, A Great STEM Hobby, Rock Tumblers
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