Toyota 7-Color Crystal LED Shift Knob This shift knob is perfect for creating a stylish atmosphere in your car, and its color changes with every touch, making it incredibly eye-catching! It lights up when touched, and the seven colors automatically cycle! The built-in LED lights up for approximately 30 seconds. It can be charged via USB. You can charge it with a mobile power supply or your car's USB port. It has a built-in long-life rechargeable battery (can be used for about 30 days with one hour of charging). Thanks to the K9 crystal's three-dimensional multi-faceted cutting technology, the material is hard and wear-resistant. It is finely polished with high-transparency K9 crystal, and has a very high light transmittance and refractive index. The three-dimensional multi-faceted cutting technology makes the material hard and wear-resistant. Applicable Sizes (Inner diameter: Compatible with three sizes: 8mm, 10mm, 12mm) Fits the type shown in the 6th photo. Compatible with screw sizes 8mm, 10mm, and 12mm. Dress-up accessory #GearLever #Universal #USB