Designed for light duty fresh water use, this B size (1”) Track Ball™ kit for the Lowrance Eagle 4 & 5 and Hook² allows users to swap out the factory mounting solution with a RAM® Mounts solution. Simply attach the included adapter to the Lowrance Eagle 4 & 5 and Hook² and you're ready to connect the double socket arm and base to virtually any track system including the RAM® Tough-Track™. Made of high strength composite and powder coated marine grade aluminum, this kit is designed to keep your Hook² secure and stable in rugged environments on your kayak or inflatable.