Constructed From 6005-T6, 6061-T6 Compatible Aircraft Grade Aluminum Alloy. Add capability and enhance worker safety and productivity with this Sprinter rear door ladder. Eliminate using a slippery tire or bumper as a step surface. The rear access ladder, made of aluminum, can be fixed to the vehicle without drilling and thereby avoiding any damage to the bodywork. Additionally, this aluminum access ladder can be re-used on the next vehicle of the same type. No drilling required, 15 Minute install time, Rigorous static testing on all rungs with a 441 lb. load, 165 lb. load on top rung with 21,500 cycle test with zero failures, 551 lb. load on middle rung with 20,000 cycle test with zero failures, 5/32 thick side rail extrusions, 1/4" thick mounting plate brackets, 12" thick rung extrusions.