Jack Stand, Duty Rating Heavy Duty, Lifting Actuator Pin Adjustment, Load Capacity per Pair 12 ton, Minimum Height 19 in, Maximum Extended Height 29 1/2 in, Base Material Steel, Saddle Shape Flat/Rectangular, Saddle Length 6 in, Saddle Width 3 in, Saddle Diameter Not Applicable, Base Shape Round, Locking Type Pin, Standards ANSI Z87.1, OSHA, Base Diameter 17 in, Individual Stand Load Capacity 12 ton, Locking Mechanism Pin