Edge of Dock Leveler, Dock Leveler Lift Mechanism Mechanical Spring Counterbalance, 20,000 lb Load Capacity, Service Height Range 3 in Above or Below Dock, Overall Width 88 in, Usable Width 66 in, Bumper Size 13 in x 5 in x 10 in, Includes Handle, Open Depth 27 3/4 in, Closed Depth 17 in