I am looking for a folding handrails system for a fixed vertical ladder that allows the user to safly access the top of a container. The handrails need to fold down below the top level of the container when not in use. Also the forces needed to erect it cant be too large, and ideally, it needs to be done at the base of the ladder so that I don’t need to hang off the ladder at the top while erecting the handrails. I realize that this is a lot to ask, but before I start to design something myself I thought that I would ask the question. Thanks all!