Precautions: (1) If the action is too slow during welding, the mouse switch will be damaged. (2) The soldering iron should not stay on the circuit board for a long time, so as not to burn the wiring on it due to the high temperature (3) The soldering tin should be heated for a short time (the torch should be kept at a constant temperature), and should not exceed 1.5s. If the time is too long, it is easy to double-click. (4) Afterwards, check that there is no residual solder left on the board to avoid short circuits. Available for: Logitech G1 Logitech Saturn trackball Logitech Mars trackball Logitech mx series (Logitech G600, G500S, G400S, G100S), Microsoft Red Shark x08, x800, Microsoft Silver Shark IE 3.0, Razer Purgatory Viper, Mad Snake , Navanja Snake, Taipan Emperor Snake, Python, Golden Ring Snake, Eight Orobo Snake, Mamba Cobra, Oroboro Snake, Steelseries/Sairui XAI, Kinzu Apple G3 G4 G5 Shuangfeiyan DELL IBM and many other mice The micro movements of the same size specifications of each series. Reference size: length is 12.8MM/0.5inch, width is 5.8MM/0.23inch, height: 10MM/0.93inch.