Thule makes versatile metal racks, and sometimes those metal racks have edges that might be not so friendly to your bike wheels. Thule recognized this and built the Wheel Tray End Caps to take the edge off the metal trays that hold your bike wheels in place. Sold as a set of two, these Tray End Caps simply slip onto the end of the tray to replace the broken or lost caps that came with the tray. Check the Tech Specs to make sure that these caps fit your Thule tray. Installation is a snap, so it won't take long for you to get your trays looking like new again.