Detail Double Bucket Dolly Pro Kit (6) 3 inch casters; 1 with locking brake. 325 lbs. weight capacity. Dirt Dropper is attached with a simply bolt and nut making it easily removalable. Accommodates (2) standard 3.5 to 7 gallon bucket. Double the productivity and capacity Side tray for storing supplies, (2) holders for cup/cans.