Package IncludedYou will receive 4pcs 25mm long lock cylinderPremium MaterialSecurity Mailbox Lock is made of high-quality zinc alloy with chrome-plated surface, which is corrosion-resistant and durable.SECURITYEach cam lock comes with two identical keys, and the four locks have different keys. Keys are not universal and protect your important items.[Easy installation] First drill a 18x16mm oval hole, pass the lock body through this hole, and use a hexagon nut and a screwdriver to tighten the cabinet lock key. The key is removable in the locked and unlocked position.Wide Application25mm Cam Lock is suitable for filing cabinets, lockers, drawers, tool cabinets, drawers, mailboxes, etc.Material:MetalLock type:Key LockColor:Silver