The thread pitch is 8mm, 10mm, and 12mm, compatible with most manual transmission vehicles. To install, simply twist, loosen, and remove the stock shift knob, then replace it with this LED shift knob. The LED lighting is powered by an internal rechargeable battery and automatically cycles through various light colors. The illumination activates upon touch detection, providing a soft glow for improved gear position visibility in low-light conditions. Specifications: 13524R Type: 6 Speed Compatibility: Fits most manual vehicles (in reverse gear, no lifting or pressing operation required); compatible with some automatic models without buttons or locks. NOTE: Please verify your vehicle’s specifications to ensure proper fitment. Color: As shown Material: ABS Package Contents: 1 x Crystal Gear Shift Knob Note: The package includes only the items listed above. Light reflection and display differences may cause slight variations between the product color in images and the actual item. Measurement may vary by +/- 1-3 cm.