OTC Tools SA02: Jack Stand, 4-Ton, Adjustable Height, Collapsed Height 9.500 in,. Extended Height 15.440 in., Aluminum, Pair - OTC 2-ton jack stands are made from rugged aircraft aluminum for durability and long service life. These lightweight jacks make handling and use easy, and placement of hole locations allows for a broad range from low to high heights. The jacks are fully adjustable with six holding heights for various vehicles and service needs. A flat, round 7 in. base diameter provides stability when holding vehicles, and doesn't dig in to soft surfaces, such as asphalt. A 2 in. saddle holds the vehicle frame or undercarriage firmly in place for inspection or repair. For an easier way to lift your vehicle, use OTC Tools 2-ton jacks! This pair of jacks meets ANSI/PASE standards.