Extreme Max 3005.2175 45" Heavy-Duty Post Trailer Guide-On with Zinc-Plated Uprights & Hardware - Perfect for Boat Trailers, Utility Trailers & RV Parking Assistance

Extreme Max Post Trailer Guide-Ons do more than help you get your boat on your trailer; they help stop 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 damage the finish. 7" bolt kit available for trailer frames up to 5.25" tall (Extreme Max 3005.4050). 8" bolt kit available for trailer frames up to 6.25" tall (Extreme Max 3005.4053). 9" bolt kit available for trailer frames up to 7.5" tall (Extreme Max 3005.4056). 10" bolt kit available for trailer frames up to 8.5" tall (Extreme Max 3005.4059).