The CE Smith Trailer PVC Boxed Post Guide-On provides a clear marker for backing, loading or unloading your boat trailer so you can see the location of your boat trailer when its underwater. This guide-on is constructed with a Black PVC boxed post, adjustable out to 13” on each side, and fits frames up to 3” wide x 4-1/4” high. The marine-grade steel frame is easy to adjust and is built to last season after season. Mounting hardware is included, making it a perfect replacement part for your boat trailer.CE Smith was established as a manufacturing firm for metal stamping production, fabrication and assembly for a variety of industries. We are dedicated to providing high-quality products and efficient, responsive service to our customers. As a company, we are always challenging ourselves to reach a higher standard and introduce new, better products to provide customers with a full-line source and the best value in trailer parts and accessories. Under the Smith trademark, CE Smith manufactures and sells replacement parts for small to mid-size boat trailers including trailer fenders, boat guides, galvanized bracketry, tire carriers, replacement wheel bearings, rubber rollers, roller shafts, U-bolts and other requirements for boat trailers.We are committed to providing precision stampings, innovative products and excellent service to manufacturing and aftermarket accounts. Thanks to the confidence of our customers, we have grown to be a recognized name in the marine industry.