Create shiny tumbled trinkets with this Rock Tumbler by Smithsonian! Includes: 1 U.L. Listed Electric Tumbler, 1 Barrel, 2 Motor Friction Rings, 2 Axle-Wear Plates, 1 Rubber O Ring Gasket, 1 Bag Rough Semi-Precious Stones (8 oz), 1 Bag Coarse Grit (0.63 oz), 1 Bag Medium Grit (1.02 oz), 1 Bag Polish (0.81 oz), 1 Pot of Glue (0.17 fl oz), 12 Plastic Anchors, 2 Key Rings, 2 Rings, 6 Cords, and Color Poster with Instructions.