National Geographic Explorer Rock Tumbler

The National Geographic Hobby Rock Tumbler Kit is a complete rock polishing kit that allows your kid to turn rough rocks into gemstones. Tumbler kit by National Geographic includes one pound of rough gemstones, eight packets of polishing grit, a storage pouch, and five jewelry fastenings. The tumbler base and motor are built to last and the tumbler barrel is designed to be low noise and leak proof. It has a built in timer and automatic shut off switch too.

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National Geographic Explorer Series Rock Tumbler

One model A-r2 #115 rock tumbler Two rubber tumbling barrels that holds 6 lbs of rocks Each barrel interior measures 4 1/4 diameter x 4 deep (107 x 101 mm) Instruction booklet A Guide for Rock Polishers Thumler's Model A-R2 No. 115 Versatile two-barrel, 6 lb. capacity tumbler. Uses two 3lb. capacity, long-life, molded rubber barrels. Ideal for small batches of single-type stones for jewelry making or for brass polishing. Heavy continuous duty, fan-cooled motor. Overload protected.

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