I don't leave my trailer more than 4 days a week. After the first rain the locks got stuck. The plastic that protects the lock from moisture retains water. I was able to unlock it with wd 40 and patience but the lock cores are junk. If you remember to fill it with wd40 or any other lube, it will rust quickly. Also, they don't have the same keys, which is also frustrating. I bought 2 packs thinking they had the same keys. 2 boots, 2 wheels. The idea is to make life difficult for thieves. They work and are cheap but know what you are getting. If you plan to leave your trailer alone, be prepared to disable the locks the next time you want to use your trailer. The only reason mine still works is because I use my trailer daily for work. FYI, it's also a pain in the butt to block the trailer backup.