The Thule RB43 Rapid Aero Bars 43 in. are strong and aerodynamic bars that attach safety and easily to Thule feet. Rapid Aero Aluminum Bars are Thule’s premium, lightweight aluminum load bars that are stylish, aerodynamic and weather resistant. The Thule RB43 Rapid Aero Bars feature an upper T-slot for simplified mounting of accessories, and attach to mounted Thule Rapid Aero base rack feet. The Rapid Aero bars are designed to work with Thule Rapid Foot Packs and are sold as a pair. This is a discontinued product and is open box so may come out of its original packaging but is in good overall condition.