High quality original buttons from QANBA. 0.8 mm pre travel,2.8 mm total travel, 70,000,000 lifetime. Mechanical shaft linear switch,45 cN operating force Silicone inner cover, quieter, smoother and more responsive Snap-in mount, easy to replace existing parts and use, fits most joysticks, or you can use the buttons to build your own custom controller. This is a snap-in type pushbutton that allows the user to configure it with various parts to achieve a different feel and performance.