For sale is a brand new, factory-sealed Thule Xadapt9 adapter kit. This hardware is used to mount Thule bike, ski, or watersport carriers flush onto T-track aero crossbars (like Thule AeroBlades, WingBars, or factory racks with a top channel).
Retails for $40.
keywords: Thule, Xadapt 9, fit kit, roof rack, base rack, cross bars, aero bars, T slot, T track, bike rack adapter, ski rack mounting hardware, car rack parts.