C.E. Smith 60" PVC Boat Post Guide-On w/Unlighted Posts - BlackC. E. Smith 60" PVC Boat Post Guide On w Unlighted Posts Black These new CE Smith post guide on allow you to see the location of your trailer when its under water. The 2" PVC tubes make it easy to see your trailer's position when backing down the ramp. Includes 1 1 2" square, 16 gauge pre galvanized steel uprights, 39" high and 2 3 8" outer diameter black PVC posts. Stands 60" above trailer frame with black post caps.