Edge of Dock Leveler, Dock Leveler Lift Mechanism Mechanical Spring Counterbalance, 20,000 lb Load Capacity, Service Height Range 5 in Above or Below Dock, Overall Width 99 in, Usable Width 72 in, Bumper Size 2 in x 8 in x 18 in, Includes Handle for Manual Operation, Open Depth 27 in, Closed Depth 15 in