Designed for submerged trailers, the PVC guide automatically rises upward adding an additional 12″ in visibility, for a total adjustable viewing height of 24″ – 36″. Bright orange end caps on these PVC posts provide a clear target when loading your pontoon boat. Made of 1-1/2″ square, 16-gauge steel galvanized tubing and covered by 2″ x 20″ PVC pipe. Guide posts extend fully into the PVC tube for additional strength. Mounts to trailer cross members 2″ wide by 2″, 3″ or 4″ high. All mounting hardware included. Sold in pairs.