Folding Ladder Bracket: 3"D x 1-13/16": Rugged, high-tensile aluminum alloy brackets securely hold folding ladder while requiring minimal space on fire and emergency vehicles. Spring-loaded handle provides positive locking action to assure that folding ladder remains secure when vehicle is in motion. To release, the handle is simply pulled straight out and turned to one side. Brackets are available with powder coated finish for the following folding ladder: Duo Safety Series 585-A.