The lance cleat utilizes a single rugged aluminum alloy cam mounted vertically in a black molded frame. Just slide the rope sideways and it runs freely in the fairlead, which has a colored roller incorporated in the top for easier sheeting and identification. Ideal for use in confined spaces. For use with 1/4" line. The base size is 1/16" x 15/16". Height is 7/8". Port lance cleat.