The Thule 480R Rapid Traverse Foot Pack is the best fitting foot for vehicles without a factory rack or rain gutters. Thule 480 Rapid Traverse replaces the Thule 400XTR Aero foot, offering simplified installation and a stronger fit.KEY FEATURES – Sold as a set of 4 feet- Requires Thule Traverse Fit Kit and Thule Rapid Aero load bars to complete, both sold separately- Includes 4 Thule end caps- Complete security with 4 Thule lock cylinders, sold separately- Certain vehicles with shorter roof lines require the Thule Traverse 487 short roof adapter, sold separately, check fit guide for more details- Patented MaxClamp Technology provides the most secure fit possible for your vehicle- The Thule 480R Rapid Traverse Foot Pack is designed for use with the premium, aerodynamic Thule Rapid Aero bars instead of square load bars- Integrated AcuTight Tensioning Tool automatically indicates when the rack is correctly installed