Designed to allow for boarding at transom - mounts directly on transom. Folds down and telescopes into water. Self-locking brackets hold ladder secure against transom. 304 stainless steel. Bungee cord securing strap included. Nylon bushings between sections for smooth deployment. Weight capacity of 270 lbs. Steps 3 Stowed 12" x 14-3/4" Deployed 12" x 23-1/2"