National Geographic Hobby Rock Tumbler Kit

EVERYTHING YOU NEED –Tumbling machine, 9 types of rough gemstones (0.5 lb), four polishing grits, jewelry fastenings, educational guide, & instructions;
BUILT TO LAST – This high-quality metal tumbler has a powerful motor, noise reducing leak-proof barrel and comes backed by a 2-year warranty.
PERFECT FOR BEGINNERS – Easy to operate! Features an automatic shutoff timer so you can get bigger results and save energy;
LEARN AND DISCOVER – Learn about all 9 of the gems included and then explore your own backyard for additional rocks to polish with your tumbler.


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