The Tumble-Bee 1x4 lb barrel rotary rock tumbler comes complete with one 4 lb capacity rubber barrel. This 4 lb barrel is a great size for tumbling and polishing larger quantities of stones, glass and metals at once. With industry leading designs and features, the Tumble-Bee is a durable, modernized rock tumbler that is very user-friendly and easy to use. Made of ABS plastic with a metal reinforced bottom, the Tumble-Bee housing is rust-free and free of sharp edges. Built-in barrel guides keep your barrels running true while you tumble. Its lighted on/off power switch easily indicates if your rock tumbler is on or off. The powerful 115V continuous AC fan-cooled motor comes installed with a thermal overload protector. Designed to tumble 24/7 and comes backed with a one-year warranty.