The Grainger 16T231 is a 16-ton hydraulic bottle jack made of steel with a lifting range of 10-15/16 inches to 17-1/8 inches. It has a built-in overload valve and bypass device and meets ASME PALD standards. The jack has a saddle diameter of 5-1/8 inches and an extended height of 17-1/8 inches. It is designed for garage, auto repair shop, construction site or farm use for lifting equipment, removing tires and more. The 16T231 has a one year warranty.