The Perma "AH" Adjustable Head Member Dock Seal offers the benefits of three sided foam seal protection along with an adjustable 18" high, steel framed head member for varying truck height coverage.
As the truck backs into the dock, the pulley system allows the head pad to be easily adjusted to accommodate any truck height.
The steel counterweight holds the head pad in position. It can be moved entirely out of the dock door opening to permit full door height access.