Check the listing for details. Knott Galvanized Full Boat Trailer Winch Post Assembly w/ Roller for 3x3 Tongue. Condition: New. Listed at 235.66 USD. This boat trailer winch post and seat assembly includes everything you need for the Winch area of your Boat, PWC, or Jet Ski Trailer. It includes the Winch Post, Winch Seat, 900lb Capacity Trailer Winch, 4-Inch Blue Poly Vinyl Roller with End Bells, as well as all the mounting hardware for assembling the components and installing them to your trailer. This Version of Knott's Winch Post Assembly is designed for use with a 3"x3" Trailer Frame Tongue Material. The parts are all Hot-dipped Galvanized steel with Zinc Plated Hardware, so this Boat Trailer Winch Unit is best put to use on Galvanized Trailers. The Winch Height is adjustable up the main Winch Post in order to help get the best fit to your Boat's Hull. The Adjustments can be made quickly and easily after installation by loosening the U Bolts that attach the Winch Seat to the Angled Post and Re-tightening them at your desired height. FeaturesFits 3"x3" Trailer Tongue900lb Winch Capacity4 Inch Poly Vinyl Bow Roller with End BellsGalvanized Winch Parts with Zinc Plated HardwareInstallation and Mounting Hardware is includedIncluded Components(1) Winch Post Sized to Fit 3" x 3" Trailer Tongues(1) Adjustable Winch Seat that Secures to Post(1) Preinstalled Knott 900 lb Capacity Boat Trailer Winch with Strap and Handle(1) Blue Poly Vinyl Boat Trailer Roller Pre-Installed to Winch Seat(4) U-Bolts with Nuts/Hardware for Attaching Winch Post and Winch Seat