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• TURN ROCKS INTO GEMSTONES – Create stunning polished gemstones for your rock collection with this rock tumbling machine from National Geographic
• PERFECT FOR BEGINNERS – Everything you need is included! Follow the instructions to produce sparkling gems. You can even make custom jewelry (fastenings included)
• 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
• IMPROVED QUALITY – This 2016 tumbler has a powerful motor and a newly improved leak-proof chamber and comes with National Geographic Toys' 100% satisfaction guarantee
• COMPLETE HOBBY KIT – Quality rock tumbling machine， rough gemstones (½ lb)， four polishing grits， jewelry settings， educational info guide， & instructions