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 tor additional strength. Mounts to trailer cross members up to 2" wide by 2" high. All mounting hardware included.