Super-tough precision welded construction with an industrial grade finish. Polyurethane coated, non-marking, quiet roll wheels V-Profile Handle Industrial quality for professional mechanics and hardcore automotive enthusiasts. Swivel saddle and rear casters provide smooth manoeuvring and positioning. Hydraulic oil bypass systen protects ram from being overextended. Safety overload system prevents use beyond rated capacity. Double pump for quick lift design, can raise to maximum height in only 8 pumps. Height Range: 75-505mm. Capacity: 4 Ton.