[Product Features]: Carbon fiber material, stylish and simple style, internal RFID woven armor, 100% shielded car key signal. [Physical Review]: The key bag is simple and practical, moderate in size, and does not reveal personality. The Velcro is transparent, and the key ring is transparent for the trailer key.Keys can be easily replaced inside and outside the key box to protect the safety of your car. [Maintenance method]: Wipe with water or a small amount of detergent.Do not dry clean, expose to sunlight, iron or bleach. For the protection of radio keys of all current car brands and all types of vehicles equipped with extended access systems (except Renault cards), also for radio transmitters such as access keys, double keysor remote controls39;Garage door openers The unique key ring for inserting keys into our armored case is the only key ring on the market with a key ring: simply flip the cover and the key is attached to the chain in your hand.No more struggling to find your keys in your pocket, or worrying about them falling on the floor!