Megaware KeelGuard Boat Keel Protector Protects against abrasive sand, rocks, concrete ramps and oyster beds and eliminatecostly repairs Keel Guard prevents wear and damage to your boat's keel which can break down its protective gel coat finish Do-it-yourself application installs easily in an hour or less; Application kit comes with patented burnishing tool which insures professional results Enjoy the highest quality and superior engineering - every aspect of Mega ware Keel Guard has been designed with boat designers & 3M engineers Lifetime no-hassle warranty