【Protect Your Car】Our RFID blocking case effectively blocks all signals inside, preventing criminals from using signal amplifiers to steal vehicles. 【Exact Size】The RFID blocking case not only ensures proper function, but also has similar dimensions to your car key, making it space-saving and practical for everyday use. 【Testable】Simply put your car key in your pocket and you won't receive any response from the car, proving that the case is valid. 【Exquisite Appearance】Smooth surface and compact size. With its elegant and sophisticated appearance, this luxurious key fob is a must-have!