ETD Quadra-Step. Throw those 9inch plus rise RV steps away if you are having trouble lifting your legs that high! Rise between treads is approximately 7in. 26in total drop when opened. Outside edge of bottom step will sit approximately 32in from the outside wall when opened for a gradual incline. Extra-smooth performance, with superior strength. Features 24in wide, perforated tread with anti-slip safety strips for added traction. The unit is virtually bounce-out proof, requiring more than a 35 degree angle to open by itself. Bolt hole pattern fits that of all major competitors for easy replacement of existing steps. Durable black E-coat finish. 25in drop 24in W tread 27in x 12-3/16in x 15-3/4in overall.