Made of urethane with UV inhibitors, the KeelShield Keel Guard provides the strongest, most durable defense for your boat's hull. The patented grooved shield protects your keel from abrasion and damage in shallow water, and while beaching against sand, concrete ramps, rocky shores, and other hazards that can take a toll on unprotected keels. At 5" wide, the keel guard is offered in a variety of colors and sizes to fit personal watercraft and boats up to 30' in length. KeelShield won't slow your craft down, either. Shipped ready to install with the exclusive 3M adhesive system. Simply prep, peel and stick! Mfrs. lifetime limited warranty. Rugged and tough construction Protects keels and hulls from abrasion and damage, plus impact Won't sacrifice boat speed Comes ready for easy installprep, peel, and stick Strong, thick, 3M marine adhesive Works on fiberglass, most aluminum, even treated wood