Package includes：1x Life/5 million times Mouse Micro Switch(D2FC-F-7N) OR 1x Life/10 million times Mouse Micro Switch(D2FC-F-7N 10M OF) OR 1x Life/20 million times Mouse Micro Switch(D2FC-F-7N 20M) OR 1x Life/50 million times Mouse Micro Switch(D2FC-F-K 50M) Lifetime means the total number of clicks available for the micro switch. For example, Life/5 million times means that the life of the micro switch is 5 million clicks. This is the microswitch used by most Logitech and some of Microsoft mouses. This microswitch may be compatible with following mice. Microsoft IntelliMouse Optical 1.1 Microsoft IE3.0 RAZER mouse Logitech MX series Logitech G series Apple G3 G4 G5.
eBay