The RC80 Flat Line Release Clip, connects to a rope cleat, transom ring or dive platform on the transom of your boat. Allows baits to be trolled below the surface and keeps lines from being wind blown into other lines causing tangles. To book your fishing line in the clip, first open the release arm, place the fishing line over the arm, then close the arm. Adjust the adjusting screw for the desired tension required for the size of bait you are trolling.