The Monster 1.75 Ton Aluminum Roadside Assistance Jack, No. MST13001, offers a lightweight aluminum design. The MST13001 weighs 39 lbs, offers a 4-3/4" saddle diameter, and has a low working height of 3-1/2" and a maximum working height of 16-1/2". This jack is made to lift small to midsize vehicles. The dual-piston power unit provides fast rising to load, the overload and bypass valves prevent the jack from being used beyond its rated capacity and prevents over extension of ram. While this jack is lifting it provides frame and under-vehicle protection with its rubber-saddle padding. The MST13001, complies with ASME PALD/2009 safety standards and has a two-year warranty on material and workmanship.