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NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - 1 Lb. Mix of Genuine Petrified Wood Fossils, Rock Tumbler Grit and Jewelry Accessories, For All Ages - Walmart.com
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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit- with 1 lb of Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings and Detailed Guide- Educational Stem Toy - Walmart.com
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Amazon.com: NATIONAL GEOGRAPHIC Starter Rock Tumbling Kit - Durable Leak-Proof Rock Polisher for Kids - Complete Geology Hobby Science Kit, Rocks and Crystals for Kids, A Great STEM Activity : Toys &
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