Prefabricated Aluminum Cradle Bunk has an aluminum frame with a black vinyl pad attached to the top with aluminum rivets. Features a 19-degree angle that securely fits the boat hull when docking. Made from 6061-T6 US aluminum. No rust or wood rot worries with the vinyl pad. The 2.7″ x 8″ x 12′ aluminum bunks work with the 5k to 13k boat lifts and come as a set of two. Comes with the hardware to attach to the bunk brackets (brackets not included).