A retractable stainless steel cleat with a thin profile that installs easily. Spring loaded stay up design. When lowered, cleat is only 1/2" above deck. Each stanchion is a 7/8" stainless steel rod. Drainage receptacles (included) capture moisture and send it to the bilge via pitot tubing (not included) . Installation is simple even on narrow gunwales – just drill twice with a 1’’ hole saw.