National Geographic Rock Tumbler

This expansive set contains a heavy-duty tumbling machine and rubber tumbler barrel.  A programmable timer ensures you get the perfect tumble time!You also get 1 pound of rough rocks to tumble, 5 jewelry settings, tumbling grit, and a detailed learning guide with instructions.Learn all about the fascinating way rocks are polished in nature, how gemstones are used in jewelry and much more in our full-colour learning guide.Features:High-quality tumbling machine with powerful motor that will last for yearsAutomatic shutoff timer so you can set it and forget itNoise reducing leak-proof barrel with stainless steel lidHalf pound of gemstones from around the world (9 types) and four grades of gritJewelry fastenings so you can create your own unique jewelryFull-color information guide with cool facts about each of the gemstones includedEasy-to-follow rock tumbling instructionsRock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Great way to start a rock collection!Learn about the exciting hobby of rock tumbling with National Geographic. Kids can use the included jewelry fastening to create beautiful homemade jewelry! Rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Introduce your kid to science the fun way! This set includes all the accessories you’ll need to start polishing dazzling gems.

Science & Discovery

National Geographic Rock Tumbler