Our Classic Turn Locks have a refined, elegant design. They function as a closure for pockets, flaps, wallets, and bags, but also a sophisticated embellishment. Turn Locks are easy to open and close; just insert the metal turn unit through the opening of the base unit, and twist the turn unit to a vertical position to secure the lock. All of the components to install one Turn Lock closure are included. It is very easy to attach. The base unit of the lock is installed with two screws and the turn unit is easily installed with prongs. Subscribe our YouTube Channel for Hardware Tutorials, and complete project videos! This style of lock is available in three sizes, perfect for all of your needs!  * Small: 0.87" (22mm) wide by 0.63" (16mm) high * Medium: 1.5" (38mm) wide by 0.91" (23mm) high  * Large: 2" (50mm) wide by 1.22" (31mm) high