Using this DC Sports shift knob is easy. First, choose the right metric adapter for your vehicle from the four provided. Then, install the shift knob onto your shifter. When driving, you'll notice a more comfortable and precise gear - changing experience. As for maintenance, simply clean the shift knob with a soft cloth regularly to keep it looking good. Avoid using harsh chemicals as they may damage the finish. If you face any issues during installation, consult a professional mechanic.