The ESCO 3-Ton Trolley Jack, No. 90521, is a double pump, professional lifting jack designed for the lifting of automobiles and medium-sized trucks and vans. The jack is ASME certified and features a "lift and twist" controlled lowering system for raising the vehicle up. ESCO redesigned the original T-handle, making it a sturdier unit that is able to handle to wear of daily use. The handle is constructed from welded steel and offers rubber hand grips for comfort. The jack includes a built-in parts tray for convenience when working on vehicles. The 90521 has a minimum height of 3.75" and maximum height of 19.69".