Lippert Components 3711361 Lippert Kwikee 26 Series Single Electric Step Supports up to 750 lbs Heavy-gauge steel and black powder-coat finish for long-lasting durability Solid steel drive rods and stainless steel bushings Sealed wiring connectors stand up to the elements Rise: 5 in; Run: 8.5 in; Tread: 23.5 in; Mounting Bolt Pattern: 7.5 x 20.5 in