The Hi-Lift is much more than a jack for changing tires. This 48 jack also can be used for winching, lifting, hoisting and clamping. Automatic mechanical operation easily raises and lowers heavy loads. It also has a 4 lifting nose for positive contact with loads, and adjustable top-clamp clevises. One-year limited warranty. Made in USA. Base: 4W x 7L. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Jack.