Description Extreme Max Post Guide-On System (Pair) The Extreme Max Post Guide-On System (Pair) do more than help you get your boat on your trailer; they also help prevent a multitude of loading problems. They’ll help you load faster and safer, keep you from loading too deep, keep your trailer position true and are especially helpful at night. Tall, easily visible, PVC-covered 40″ steel posts work on bunk or roller-style trailer frames up to 3″ wide x 4.25″ tall*. Extreme Max Post Trailer Guide-Ons are zinc-coated and intended for freshwater use only. Use in saltwater or brackish water will corrode and deteriorate the finish. Check out more Trailer Accessories here.
