I was planning to use this in combination with a plate or metal safety device, but I didn't have time to make it myself, so I'm selling it since I haven't had a chance to use it. It's new and unused, but it has been handled by a person once, so please refrain from purchasing if you are concerned. This is a set of four chains and carabiners as shown in the photos. #Carabiner #SafetyDevice #Nicks #Knicks #ToolBag #Electrician #Tobish #Tobi #Carpenter