The National Geographic Starter Rock Tumbler kit is a fantastic way to start an exciting new rock tumbling hobby! This kit has all the features and accessories you’ll need to transform rough rocks into extraordinary gemstones, start an awesome rock collection, and create beautiful jewellery. From the leakproof tumbling barrel to the four-stage grit polishing system, to the ½ pound of rough rocks, you’ll be all set! Five jewellery settings let you make beautiful pieces from your favourite stones, and easy-to-follow instructions help you become a tumbling expert in no time!