About this itemThis is the one and only Genuine GORILLA-LIFT.Makes heavy-duty utility trailer tailgates virtually weightless, allowing them to glide up and down with the slightest touch.Helps prevent costly injuries and property damages. Helps prevent very heavy-duty, commercial-use tailgates from warping and sustaining hinge damage.Is adjustable to work on different size and weight tailgates. Works on all open utility trailers with side rails 12-in. to 24-in. tall and tailgates 4-ft. to 6-ft. tall.Has a low profile housing that fully encloses the lifting mechanism for added safety.