The Malone Hanger BC 3 Bike back of car OS strap carrier has 4 large hubs that use quick release levers allowing fast adjustment of support arms and frame to fit a variety of vehicles. Six straps and over size tubing stabilize the carrier to the back of car. Soft cradles with rubber straps and anti-sway cages keep bikes from contacting each other. Integrated cable lock secures bikes to rack. Webbing strap with cam buckle to help with anti-sway included.