SECURE YOUR CAR BEFORE ITS TOO LATE- Simply place the car key fob into the faraday bag and you're protected. RFID PROTECTION FUNCTION Its suitable for all key fob sizes .Signal blocking pouch protect your car and credit card .Simple place the car key into the bag, and you will find no reponse from your cars. IMPROVED DESIGN Upgraded zinc alloy hook and Inner key chain. More strong and portable. Portable hook can hung on the pants or the knapsack, the inside key ring ensure taking the car key out easier. CONVENIENCE & 2 Pack The size of the car key signal blocking pouch is 9*14 cm. Which is easy to carry. We provide 2 medium pouches that you can protect your spare key fob or multiple vehicles in your household. Guarantee You can trust most people's choices and our services. If the faraday box have any problem contact us.