Attwood 11926-6 Zig-Zag Rope Cleat 3-1/2 in. Black NylonOne Pair of CleatsWith the easy-to-use lace back design, you can use this gripper cleat for securing your anchor, vessel or any other object without any knots. 3-1/2 in. model handles rope up to 3/8 in. diameter. Can be used as a primary cleat on canoes, kayaks, fishing boats and pontoons, or as a utility cleat on docks, piers, trailers and more.