Using this shift knob is easy. Just install it on your Subaru WRX's gear shift. When driving, hold the shift knob comfortably to change gears. The weight and design are meant to make gear - shifting smooth. For maintenance, clean it regularly with a soft, dry cloth to keep it looking good. Avoid using harsh chemicals as they might damage the finish. And remember, the actual product might look a bit different from the picture, depending on your car model and the materials used.