ATB Step Frame Box 21"H x 30"D x 30"W Single Drop and Bottom Open Door Model A SF51S 213030D T 36" L Pickup trucks have come a 9451346htslo Pickup trucks have come a long way Features 19 adjustable flash patterns 125 aluminum construction• Fully seam welded on all seams and corners• Stainless steel continuous hinge on full length of the lid• Fully concealed rain gutter with automotive weather seal• Lockable SS Dolphin Tail HD adjustable T handle latch• Corners are gusseted for added strength and durability • Strut grip steps (S) or no steps• Aircraft type nylon coated door cable• Mounting kit not included: (Kits Av ATB Step Frame Box 21"H x 30"D x 30"W Single Drop and Bottom Open Door Model A SF51S 213030D T