Our Crystal Turn Locks are stylish and eye-catching. They function as a closure for pockets, flaps, wallets, and bags, but also a sophisticated embellishment with lots of sparkle. 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. This style of lock measures 1.6in (40mm) wide by 1.6in (40mm) high.