Material: Cam locks are made of zinc alloy, chrome-plated has better waterproof and rust resistance, sturdy and reusable, perfect for keeping your small items safe. Note: The key cannot be removed while unlocking the door Size: The main lock body of RV cam lock is 7/8” (22mm) long, fits on door panels less than 9/16" (14mm) thickness, and the mounting hole diameter is 3/4’’(18.5mm). The locking plate sizes are 1.77in (45mm), 1.23in (32mm) and 1.77in (45mm), perfect for most cabinet locks, mailbox and toolbox replacement locks Package Includes: The zinc alloy cam lock set includes 2 locks and 4 keys, 3 different sized lock plates. These cam lock set are keyed alike which allowing all locks to be operated by one key, really convenient Easy to Install: Cabinet locks can be installed on metal or wood, cabinet/drawer panels quickly and easily. The versatility of the lock allows it to be installed in multiple positions by adjusting the mounting orientation of the locating tab and the locking plate Wide Range of Applications: This cam lock can be installed on filing cabinets, toolboxes, cabinets, desktop cabinets and more. If you need any support, please feel free to contact us