The Crossroad uses a foot style that complements all vehicles and is easy to install with just the turn of a handle no tools required. The 450 Crossroad feet give you maximum strength and a custom fit via rubber-coated steel straps and provide for full rail protection with integrated rubber linings. The feet are constructed of galvanized stamped steel and nylon and have a black polyester-powder coating that provides vibration damping and protects against slippage. This pack comes with all the necessary zinc-iron plated steel mounting hardware. The 450 Crossroad Railing-mounted foot pack is compatible with slide-in load bars weighs six pounds and can be locked via Thule’s One Key System lock cylinders not included. User’s should note that each foot uses five inches of bar space and requires Thule Load Bars and locks to complete this roof-rack system. 450R Includes four Rapid Towers and four end caps to affix Thule Rapid Load Bars to factory-installed roof rack. The 450R Crossroad Railing-mounted Foot pack is slotted to accept aluminum Rapid Load Bars sold separately for seamless look. Adjustment tool built into feet making it easy to tweak and lock down with no external hardware.