I can speak with surety about this product because I have owned it for five years. It received very little use the first 3.5 years. It worked great the few times I used it for those years. I only had it on the hitch when towing, and I removed it once towing was completed. But then I started towing a lot and left it in place for the last 1.5 years. Recently, I needed to take it off my hitch and found the lock was seized. Nothing worked to unlock it, so I had to cut it off; a long process that I did not have time for since I was in a hurry to get on the road. Once I pulled out the pin, I saw the pin was badly rusted within the receiver. So, in 1.5 years, this lock rusted fast and became useless.