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Starter Rock Tumbler Kit for Kids– Includes Rough Gemstones, Polishing Grits, Jewelry Fastenings, and Instructions – Great STEM Science Kit for The Future Geologist, Boys and Girls Ages 8+ - Walmart.com
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Discovery #MINDBLOWN 18-Piece Rock Tumbler Set with Polishing Machine, Rocks & Jewelry Accessories - Walmart.com
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Amazon.com: Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids All
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