One step fold-down & 4 step straight section: Stores ladder parallel to the body. Release the locking handle and pull the ladder out to a comfortable climbing angle. The ladder automatically latches and will not retract until the scissor lock is raised. Standard configurations has a two-rung fold-down section and a six-rung main ladder section. Other models available to fit your application. Provide us with a rear end dimensional print of your vehicle and we will design a ladder for your application. Cast aluminum rungs have flat, non-skid surface to provide traction and safety. Each step is 3" deep x 15-1/2" wide. Handrails are 1-1/4" heavy-walled aluminum tubing, covered between rungs by ribbed black neoprene tubing which provides firm gripping surface. Patent Nos: D442,289 & 6,378,654. Other sizes available. Please contact ZICO for pricing.