good electric steps good manual steps double manual step single manual step supports up to 750 lbs double step triple step let us install it- adjustable height best best features strong proven steel linkage and aluminum treads with solid steel construction handle measures approximately 38" tall x 25" deep anti-skid surfaces solid platform and sturdy handrail extended hand rail descends at an angle to help campers keep interchangeable 29" handrail steps have 7" rise and are 9" deep bolts and handrail to fold three-step extends up to 37" with provides additional 13" pre-drilled holes drop and 10%;" width over standard hand rails removable rail that stores and sets up in just minutes! lightweight outside your rv