For those vehicles that require a more custom fit, the Saris Hatch Hugger SL Rack Straps (3045) use the existing Bones, Bones EX, Guardian, and Sentinel rack straps and hooks. Please use the Fit Guide to determine if you need the Hatch Huggers Saris Straps for your bike rack accessories. Easy to install, designed to work seamlessly with the existing straps on Saris trunk mount carriers. Hatch Huggers SL attach to your trunk rack using the existing j-hooks and straps.