👉 Wrist lock, also known as a lock or pin, is a type of lock that consists of a pair of handles and pins that are tightly wrapped around a keyhole. The handle is used to turn the lock, while the pins hold it in place on the keychain. In general, a wristlock can be found on many types of locks, including traditional locks such as brass or cast iron locks, and more modern designs such as plastic or metal locks with a button or lever mechanism for