Thule Board Shuttle Corrosion-resistant stainless steel Flip Fit Brackets fits all Thule Rack Systems, round bars and most factory racks (no loose parts) Exclusive telescoping design delivers a custom fit for board widths up to 34" wide Dual loading design allows for transport of two boards with maximum stability Includes board tie-down and center straps (1 pair-15')with buckle bumpers to transport board securely and protect vehicle finish Fits Thule AeroBlades and square bars Fits Thule Xsporter Pro with the Xadapt 12 adapter, sold separatel