Today we're going to be taking a look at part #63227. This is the Tow Ready Gorilla Guard trailer coupler lock for 2-5/16 trailer couplers. It's going to come with 2 keys. These are single-action keys. They are going to be pick resistant. All you have to do is place the key in, give it a small turn, and it's going to bring this lock in.… see more >