Ideal for Jon boats, bass boats and personal watercraft while providing the strength of traditional guide on’s. The guide posts are made of 1-1/2″ square, 16-gauge steel tubing and galvanized for long lasting protection. Guide covers are made from high impact non-marking molded PVC. Mounts to trailer cross members 2″ wide and 2″ – 4″ high. All mounting hardware included. Sold in pairs.