It works. That's about the best I can say for it. The little flap that keeps dirt out of the keyhole has slowly gotten more and more difficult to open with the key. I first thought this was due to the cold winter but then on the first 60 degree day this Spring found that it was still just as difficult to open. One star for locking properly, one star for sealing my gas tank properly. As soon as it gets next to impossible to get the flap open I'm swapping out for a different brand.