POLESTAR Electric Jack 12V DC 3500 Pounds Power A-Frame for Caravan, Travel Trailer and Caravan

A frame jack powered with a high strength of 3500 kg. Lifting capacity. Emergency removable crank included Powerful 12cc engine provides maximum torque to raise or lower your A-frame trailer in a fraction of the time. This unit has an integrated circuit switch that automatically activates and resets if the amperage is too high. The industrial design cover is extremely waterproof. Upgraded LEDs glow on your ball and coupler where light is needed most. Specifications: retracted length: 22.5 cm, extended length: 68 cm, (plus leg dropped by 11 cm), outer diameter of jack tube: 6 cm. 1 year warranty. Improves performance. Easy installation. High reliability.