The ESCO 22 Ton Heavy Duty Jack Support Stands with Threaded Adjustable Post, 1 Pair (Model 10456) are designed to support loads of up to 22 tons (44,000 lbs. per stand). Ideal for use in a variety of industrial and commercial applications including construction, semi-truck service/fleet, bus, dump truck, tractor, material handling, and any heavy duty maintenance service garage. Designed with an adjustable screw style saddle that provides 2 inches of additional height for precise accuracy while supporting load. The lifting column is easy to position and adjust, with three different axle height positions to choose from. Additionally, these stands feature a locking pin holder and a 1/4 inch thick solid steel base plate for added stability and safety. With a one-year warranty included, the 22 Ton Heavy Duty Jack Support Stands with Threaded Adjustable Post, 1 Pair (Model 10456) are a reliable and versatile solution for heavy-duty vehicle service and repair.