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National Geographic Professional Rock Tumbler Kit- Rock Polisher for Kids and Adults, Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Our New GemFoam Polisher, A Great STEM Hobby :

CREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock polisher kit makes it fun and easy to

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