Carr 501020 Features: Hands Free Fully Assembled 500 lb. Weight Capacity Easy To Install And Easy To Use Conveniently Tucked Away When Not In Use Push The Step In To Deploy It To Its Out Position Push It In To Lock It When Not In Use Interior Steel Straps For Additional Strength Height: 4.50 Width: 16.50 Length: 30.00 Weight: 35.00 lbs