The ASL 320 Pulse Mechanical Switch is as mechanical switch which was designed to activate from any location on the top of the switch with minimal force. It includes a rubber seal which prevents foreign substances from entering the switch and interfering with operation. The screw insets on the base work with any of the ASL 930 Swing Away Switch Mounting Assembly Hardware, the ASL 611 Arm Rest Switch Mounting Bracket or the ASL 320R Pulse Mechanical Switch Ring Mount. It comes in Black, Green, and Red. Mounting not included