RFID Key Fob Protector: Prevents car key relay theft & digital pickpocketing by blocking WiFi, Bluetooth, GPS and radio waves. Keep electronics secure with premium signal-blocking technology. Our product is 20.5x12.3cm, which can protect your mobile phone and car keys All-round Protection: Protect your car and phone with Faraday RFID Key Fob Protector. Secure your essentials effortlessly Upgrade Design: The faraday bag with upgraded zinc alloy hook. More strong and more portable. You can use the hook hangs on the pants or the knapsack, the inside key ring ensures taking the car key out is easier High Quality: The carbon fiber Faraday bag with unique texture shows fashionable life! Thick carbon fiber shell is matched with the super strong shielding cloth lining to provide high-quality protection. 1 Pack Faraday Bag for Phones & Car Keys Anti-Tracking, RFID Shielding Car Key Signal Shielding Bag Carbon Fiber Anti-Theft Protection Faraday Pouch - Black