Trailer Stabilizing Jack Gas Activated Static Load Capacity 100 000 lb Adjustment Range 39-1/4 in to 52-1/2 in Lifting Capacity Not Rated Yellow Base Dimensions 21 in x 16-1/2 in Top Plate Dimensions 30 in x 5 in Material Steel Wheel Material Solid Rubber Wheel Width 1 3/4 in Wheel Diameter 10 in Includes Key Lock Pin Standards Meet OSHA Regulations With Wheels Yes