C.E. Smith Post Boat Guide-On w/U-Bolt Mounting Brackets & Unlighted Posts 60". The 2" PVC tubes make it easy to see your trailer's position when backing down the ramp. Specifications for C.E. Smith 60" Post Boat Guide-On w/U-Bolt Mounting Brackets & Unlighted Posts: Manufacturer: C.E. Smith Color: Silver Features of C.E. Smith 60" Post Boat Guide-On w/U-Bolt Mounting Brackets & Unlighted Posts Mounting hardware included Sold in pairs Adjusts out to 19" each side Fits frames up to 3" W x 4-1/4" H 1-1/2" square 16 gauge pre-galvanized steel uprights39" high 2-3/8" diameter white PVC posts. Stands 60" above the trailer frame with white post caps. Installation Instructions For larger trailer frames check out our Large Frame U-Bolt Kit (11416)Pre-Galvanized SteelPre-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) Package Contents: C.E. Smith 60" Post Boat Guide-On w/U-Bolt Mounting Brackets & Unlighted Posts C.E. Smith 27640: Post Boat Guide-On w/U-Bolt Mounting Brackets & Unlighted Posts 60"