Hobby Rock Tumbler

Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems…now you can!, Ages: 8+ , With the Hobby Rock Tumbler from

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National Geographic Hobby Rock Tumbler Kit

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National Geographic Hobby Rock Tumbler Kit

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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit