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National Geographic Hobby Rock Tumbler Kit : Target
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/GettyImages-136810067-58b5bf613df78cdcd8b91f45.jpg "Rotary Rock Tumbler Instructions")
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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit - Walmart.com
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