Rock collecting can be a fun, educational and interesting hobby. This polisher brings out the natural beauty in rocks. It has two watertight molded-rubber barrels, each with 1-quart capacity. The 115-volt, 1/75th hp motor supplies plenty of power. This polisher has a heavy-gauge steel base, and it comes with enough polishing grit to do the complete polishing process in two barrels. An informative book on rocks also is included. Dimensions: 6" x 11" x 7-1/2".