CE Smith Post Guide-Ons 40" - BlackCE Smith's boat trailer guide-ons make it easier to see the end of the trailer while on the road or when loading or unloading. The guide-ons protect your craft from damage and provide an additional measure of safety while trailering as they provide a visual aid for other drivers. The Post Guide-On is designed with square 16 gauge steel uprights, pre-galvanized for corrosion resistance, and 2-3/8" diameter. It also features a black PVC posts to secure its stance for long term durability.Features: Clear marker - backing, loading, or unloading; 16 gauge square steel uprights; Pre-galvanized construction for corrosion resistance; 2-3/8" black PVC posts; Long term durability; 40" tall; Sold in pairs;