The Right line Gear Mookie Door Step provides easy access to your vehicle's roof. Simply hook the Door Step over the u-shaped door latch in each of your vehicle's doors. The Step is used to load and strap down car top cargo bags and boxes; canoes, kayaks, and SUPs; skis and snowboards; and bikes. Even use it to help wash your vehicle's roof. The Step provides a comfortable platform for both feet and allows for a balanced standing position. The patented Step eliminates dirty shoes on vehicle seats and the need for step stools or ladders. If you are short or your vehicle is tall, the Mookie Door Step makes getting your gear on or off your roof a breeze!