Move large pots, heaters and water reservoirs with ease with Plant Dollies. Each dolly is durable and features wheels with steel ball bearing casters for smooth transport. The 12" has four wheels and can hold up to 200 pounds; 16" has five wheels and can hold up to 250 pounds; 24" has six wheels and can hold up to 500 pounds; and the rectangular 16" x 11" has six wheels and can hold up to 200 pounds.