Safety Strap Prevents Loading Dock Mishaps Door Dok-Guardian prevents fork trucks from traveling through closed loading dock doors. The 6-in.-high, heavy-duty, nylon strap mounts to Universal GX-4000 bottom sectional door panel. Strap travels with door when opened and closed. When door is closed, strap and steel impact brackets slide into Warden Door Guards. When door is open, strap is out of door opening for unobstructed loading and unloading. Yellow barrier stops a 10,000-lb. fork truck traveling at 3 to 4 m.p.h. and protects sectional door tracks. Retrofits to most sectional doors.Rite-Hite Corp., Milwaukee, WI