100% Stainless Steel | Quick Release | Trunk Mounted Bike Rack 100% STAINLESS STEEL: Much more durable and stronger than models made with other materials. QUICK RELEASE: Quick release handles are used for much more convenient installation. EXTRA MOUNTAING CRADLE: We advertise this rack as a 2-bike rack. However we offer an extra cradle. In some cases this rack can mount up to 3 bikes depending on the size and design of your bikes. HIGH QUALITY MOUNTING CRADLES AND STRAPS: Please review the detail pictures. Z3-304 uses strong plastic and thick rubber for easy mounting and durability. EASY ADJUSTMENT DESIGN: Our design makes it much easier to adjust the position of your bikes.