Yosoo Black Leather Touch Motion Activated LED Light Auto Car Shift Knob Shifter Gear-Multicolor The thread pitch is 8mm, 10mm, 12mm (which are all inside one shift knob to fit most manual cars). To install, simply twist, loosen, and remove the stock shift knob and replace with this LED shift knob. There are LEDs that are built into this shift knob which are activated by simply touching it, the LED light will stay on for 30 seconds and automatically turn off afterwards. The LEDs are powered by an internal battery source which is rechargeable. (In the meanwhile of 30 seconds, the light colors will change automatically). A charger is included in this package so you can recharge it with the car cigarette lighter outlet. Compatibility: Fit for most of manual car vehicles, some Automatic( without button device)