The optional Webbing Ladder/Lock Attachment System uses 8” X ¾” Webbing Straps to anchor your spray deck to the canoe. One end of each strap is sewn into the hem along the perimeter of the spray deck at 10” intervals. The other end extends down towards the water line and loops around a length of 1” webbing which is riveted to the outside perimeter of the canoe at 10” intervals, approx 5” below the underside of the gunwale. The ¾” Webbing Straps loop around the 1” webbing and back up into a tension lock buckle. Pulling down on the ¾” Webbing Straps produces tension to pull the spray deck taut over your canoe.