Learn about the exciting hobby of rock tumbling with National Geographic. This set includes all the accessories you'll need to start polishing dazzling gems. Rock tumbling is tons of fun and a great way to start an extraordinary rock collection!
Powerful motor that will last for years
Automatic shutoff timer
Noise reducing, leak-proof barrel with stainless steel lid
Nine types of gemstones from around the world
Four grades of grit: coarse, medium, fine, and polish
Jewelry settings include ring, earrings, keychain, and necklace
Full-color information guide features facts about each gemstone
Total gemstone weight: 1/2 lb.
6'' H x 6'' W x 8 1/2'' D