10-ton lifting capacity at 200 PSI air supply. Extra wide stance for extra stability. Complete air operation for low maintenance and long life. A little squeeze is all it takes to lift the end of a truck or trailer. Just roll the 1590 under the load, adjust the lifting saddles, connect an air line and squeeze. Ten tons of lifting capacity! An automatic mechanical safety catch engages in five height positions; it must be manually released to lower the load. Thanks to two large swivel casters and pneumatic tires, the 1590 rolls easily to the work, even over loose gravel. Just pull a pin and you can readjust the height of the lifting saddles...the width between them is also adjustable.There are two fittings on the air control valve: one for quick connect to theair supply, the other for a Schrader valve. The heavy-duty piston features awear ring and seal for long life. Specifications: Capacity: 10 tons (at 200 PSI air) Air pressure: 100-200 PSI Lifting range: 13" - 52" Saddle width: 29" - 41 3/4" Height: 67 1/2" Width: 41" Length: 36" Weight: 697 lbs. This Item requires additional Freight handling It iseither Oversized, requires Special handling, or will only ship by truck line.