The Model DL-80 lock-rod cam and keeper lock - for cargo, stock, vehicle and utility trailers, as well as tractor-trailers and ocean containers - designed to protect the contents of enclosed cargo trailers. It will secure most rear doors and front personnel doors, and fits on both vertical and horizontal lock-rods. Covers the bolt head at the top and bottom for added security. Recessed lock tumbler push button. Pull ring for easy pin removal. Ring designed to break loose if forced.