4" black plastic cleat. Durable and noncorrosive. Black. Overall length: 4-1/2", rope size: 5/16", fastener: 3/16" No. 30821: Overall length: 6", rope size: 7/16", fastener: 1/4" No. 30841: Overall length: 8", rope size: 5/8", fastener: 5/16" No. 30861: Overall length: 10", rope size: 1", fastener: 5/16"