The single 4 lb. capacity barrel is sized for slightly larger material at up to 2 inches. The rubber barrels on these tumblers are quiet and long wearing. The barrel is molded to have a decagon (10 sides) on the interior of the barrel to increase the tumbling action.
Base dimensions: 6.5″W x 10.25″L.
Barrel inside dimensions: 3-1/2/″ depth, 5-3/4″ diameter.