Feature: 1. DURABILITY AND STRENGTH: Boat trailer roller bracket ensures stable sliding during towing, reducing friction and wear between the vessel and the trailer, thereby extending their service life. 2. HEAVY DUTY CONSTRUCTION: Crafted from heavy duty galvanized steel and premium rubber, providing high strength and durability, not easy to deform and damage. 3. SUPPORT AND ABSORB SHOCK: Boat trailer rollers with brackets support the weight of the trailer on board and absorb road shocks, offering stability and protection. 4. SIMPLE INSTALLATION: Professionally designed for quick installation and disassembly, saving time and labor costs, without complicated steps and procedures. 5. VERSATILE COMPATIBILITY: Suitable for small yachts, boats, commercial vessels, and more, enhancing your boating experience every time, dependable and practical. Specification: Item Type: Boat Trailer Keel Roller Assembly Kit Application: Replace worn keel roller on boat trailers and provide support, ensure stable sliding during towing, absorb road shocks, reduce friction and wear between boat and trailer, extend the lifespan of both boat and trailer. Fitment: Suitable for various boat trailers, enhance your boating experience every time, make launching and loading your boat effortless.. Package List: 1 x Boat Trailer Roller with Bracket2 x Bolts