These Post Guide-Ons allow you to see the location of your trailer when it's under water. Designed for I-beam trailers and I-beam boat lifts, these guide-ons feature an innovative two-piece mounting clamp that works above or below the I-beam. Brackets will fit onto any height and virtually any width I-beam trailer frame.

• Mounting hardware included
• Sold in pairs
• Adjusts out to 19" each side
• 1-1/2" square. 16 gauge pre-galvanized steel uprights
• 2-3/8" diameter white PVC posts.
• Pre-galvanized steel parts are stamped from a sheet of steel after it has already been galvanized. The galvanized coating is very thin (0.45 oz. on each side).