Schlage 650 Series key switches utilize an innovative magnetic spring design which allows installers to configure both clockwise and counterclockwise key turn direction as well as momentary or maintained action in seconds. 1-gang and narrow stiles are available with numerous options which include heavy-duty plate, weather-resistant cover (single gang size only), 2 LED lights - green/red, anti-tamper switch and Schlage Everest® cylinder. in addition to the standard (630) satin stainless steel finish, there are three additional architectural finishes to choose from.