Our heavy-duty Large Rock Polisher with rubber tumbling barrel is powered by an electric motor that's safely enclosed inside the set's aluminum housing. The barrel holds up to 3 lbs. (max.) and comes with 3/4 lb. bag of assorted rocks to polish, polishing grit in 4 grades and jewelry findings. Small Rock Polisher has a 2-lb. capacity. Family activity with adult supervision.
Rock on with Extra Polishing Grit (4 grades, 12 oz. total). Keep rocking with Extra Unpolished Rocks (2 lbs.)