Precision Engineered for quiet operation. Non-marking red casters to easily identify traditional dollies from quiet dollies. Eliminates 88% of traditional dolly noise across both smooth and uneven surfaces. Twist lock feature secures containers to the dolly. Color(s): Black; Dolly Size: 18 1/4" dia x 6 5/8"; Capacity (Weight): 250 lbs; For Use With: Brute? 32-Gallon, 44-Gallon, and 55-Gallon Round Waste Containers.