This auction is for a Clack Factory F2 Red MX click clack (note that the hole drilled in the back denotes this cap as an F2).  It has only been mounted once for pictures and was then put back in the packaging I received it in.  This click clack skull is in the exact condition I received it in directly from Clack Factory.  This keycap will only fit Cherry MX switches.  Due to this being an F2 click clack, there is no exact name for the red.  I have tried to capture the color as best I can using natural outdoor lighting and a pure white background.