Specification Material: Steel, Plastic Wheel Material: Rubber Color: Black, Red Surface Treatment: High-temperature Painting Lifting Type: Hydraulic Ratchet Foot Pedal Each Product Number of Wheels: 4 Quantity: 4 Weight Capacity: 680kg/1,500lbs per Dolly Adjustable Width: 28-58cm/11.02-22.83in Height: 10cm/3.93in Packing Size(Each Package): 81*56*19.5cm/31.88*22.04*7.67in Each Product Size: 64*57cm/25.19*22.44in Gross Weight(Each Package): 35kg/77.16lbs Net Weight(Each Package): 34kg/77.16lbs Package Included 4*Wheel Dolly Car Skates 16* Universal Wheels All Accessories for Installation.