JEGS Wheel Dollies feature sturdy, all-steel construction and industrial strength swivel casters. Contoured on every edge for smoothness and finished with black powder coating for durability. JEGS standard 1,000 lb. capacity wheel dollies have 3-1/2" caster wheels and will accommodate up to 15" sectional width. The heavy duty option will handle up to 1200 lbs. per wheel (2400 lbs. per axle) and accepts up to 10" tread width. Sold in pairs.