1. It does not hinder signal transmission and does not affect the normal use of the key. 2. Lightweight carbon fiber, hanging on the waist is not burdensome, protects the key. 3. Elegant design, high hardness comparable to metal, smooth touch. 4. It reserves the mechanical keyhole. Easy to remove at any time, perfect replacement. 5. Beautiful box, it can also be used as a gift for friends. Specification: Features: It does not hinder signal transmission and does not affect the normal use of the key. Lightweight carbon fiber, hanging on the waist is not burdensome, protects the key. Elegant design, high hardness comparable to metal, smooth touch. It reserves the mechanical keyhole. Easy to remove at any time, perfect replacement. Beautiful box, it can also be used as a gift for friends. Specification: Condition: New Item Type: Carbon Fiber Key Case Optional Color: Red, . Material: Carbon Fiber Fitment: suitable for A4L A4 A5 TT 2017 (same shape keys can also be used) Package List: 1 x Carbon Fiber Key Case