I'm an old guy and I have bought almost every coupler lock made. They're all trash...easy to pick and easier to cut off. Except the Icon. The Icon is the best trailer lock made in the world and nothing is even close. Finally a lock that actually secures your trailer. This is my second one and Altor even keyed it to match my first Icon lock at no extra charge. It costs more than cheaper locks but it's the cheapest insurance you'll find against theft. A thief will take one look at it and move on to the next trailer.