Malone Sentry Ratchet Tie Down Strap System - The Sentry Ratchet Tie Down Strap System from Malone is a premium safety bow & stern line system. The ratchets allow you to secure your boat to your vehicle quickly and easily with no time consuming knots to deal with. Bow & Stern safety tie-downs are a basic safety requirement for transporting kayaks over 12 feet in length and should be used in all circumstances with all carriers styles. Each set will secure one boat. Malone's Sentry Ratchet Tie Down Strap System make transporting your kayak effortlessly and worry free!