Cape Hatteras Boat Fender Hangers Black Made from durable marine grade UV resistant plastic with a nickel plated solid brass grommet that is sure to hold up under the most demanding conditions. Will handle lines up to 1/2 inch diameter; Will attach to railings up to 1 inch diameter. Easily hanger boat fender without tying knots; Snaps on and off in seconds. Works on rails, lifelines and stanchions. Packages is a set of two. Also available in white.