PermaDOCK-MD is a mechanical dock leveler that is an economical and safe solution for basic loading dock applications. They are manually operated and easy to use. To operate, simply pull the release chain located at the rear of the deck. The dock will rise and the lip will extend at which point the dock leveler can be walked down on the truck bed for safe loading or unloading. PermaDOCK-MD has a reliable deep tooth ratchet hold-down system that is designed with positive locking traction that increases safety and reduces maintenance.