An electric strike is an access control device used for doors. It replaces the fixed strike faceplate often used with a latchbar. An electric strike's ramped surface can, upon command, pivot out of the way when the lock on the door is in the locked position and the door is opened, allowing a user to open the door without operating the mechanical lock or using a mechanical key. Electric strikes are generally available in two configurations: Fail Secure and Fail safe. The latest trend is a strike that is quickly reversible from fail safe to fail secure (and back again if needed).