Bright orange end caps on these PVC guides gives a brighter target when loading a pontoon boat. The guide posts are designed to be mounted between the pontoons. Made of 1-1/2" square, 16-gauge steel tubing and covered by 2"x 20" PVC pipe. Galvanized guide posts extend fully into the PVC tube for additional strength. Mounts to trailer cross members up to 2" wide by 2" high. All mounting hardware included.