Sea-Dog's large loop clam cleat offers a quick and easy way to hang fenders from guard rails, stanchions, or any other suitable part of a boat. This cleat is permanently attached to the fender rope, so it cannot be lost. Cleat is easily adjusted so that your fenders stay positioned correctly. To hang a fender, place the fender rope over the guard rail and cleat it in the correct position. The cleat's tooth design allows a positive grip on the rope that releases easily, making it ideal for radio masts, tents, and fenders. Instructions are provided with each cleat. For 1/4" - 1/2" rope. 3-1/16"L x 15/16"W.