The American made, Hein-Werner 1/2 Ton Air/Hydraulic Telescopic Transmission Jack, No. HW93720, was built for efficient, long-lasting use. The lift operation has two stages, air operated and hydraulic, for a total maximum height of 72". The wide base frame is built for added stability, while the 4 PU swivel casters make for easy maneuverability in your shop. The saddle adjustments are made simple with the big, easy-to-grip crank handle for the placement you need to get the job done. Secure the load with the hefty nylon safety straps that help anchor the transmission.