fit most Roof Rack Crossbars and protects your Kayaks, Canoes, Surf Boards, etc. from rubbing on hard roof racks, increases the surface area of the tie down points, and allows you to secure your items to your rack more tightly without fear of leaving dents and dings in either your car or your Kayak. Available in two lengths, 30” and 36”, and sold by the pair. Suggested use with pads.