Bones is an award winning design. Available in 2 or 3 bike version Bones is so quick and easy to set up right out of the box. Curved arms allows clearance on most spoilers and offers deluxe features for both the bike and vehicle.Built with 100% recyclable non-rusting materialArc design fits over most spoilers and separates bikes on different levelsRatcheting anti-sway straps secure and stabilize bikesInjection-molded arms and legs