Using this Noble Carbon Fiber Key Shell is easy. Just snap it over your car key and you're good to go. Before installing, make sure to check your key against the third photo to ensure a proper fit. Some base and premium models may have different keys. As for the range, you might notice a small reduction, but that's a minor trade - off for the style. To maintain your key shell, simply wipe it with a soft, dry cloth regularly. Avoid using harsh chemicals as they could damage the carbon fiber and the gloss finish. Keep it away from extreme heat or cold to prevent any warping. With proper use and care, your key shell will keep your key looking great for a long time.