This Attwood Roller Panel Spool/Keel Bracket Roller Assembly reliably protects a boat’s keel as it rolls onto and off of a trailer. This is a complete spool/keel bracket and roller assembly with the Attwood 11210 roller and 11252 bracket. It mounts to a trailer cross roller assembly for smooth and protected boat loading and unloading. The sturdy bracket is made of formed, zinc-plated steel panel with a ½-inch-wide slot for adjustment. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.