ESP PTR-656UN Universal Mailbox Lock Kit. Replaces popular mailbox locks like: Auth, Bommer, Florence, Jensen, Cutler Federal, Miami Carey, Permabilt, Dura Steel and American Device. Does not replace newer National USPS style locks. Kit includes: lock, 2 lock clips, 5 different tailpieces, locking nut and 2 brass keys. Does not have dust shutter.