As the most simple installation of any retractable cleat in the industry, you’ll want to check out the folding cleat. No cut-outs or hole saws required. These cleats lock down when not needed, and spring up when release button is pushed in. No drain tubes or drain receptacles required. They do not leak into the boat. The most simple installation of any retractable cleat in the industry. Constructed of marine grade 316 cast S.S. and brightly polished. Through bolted (with visible screw holes). .