Signal interception: Prevents Prevents RFID, NFC, Bluetooth, GPS/SatNav networks, 2, 3 and 4G mobile phone and wifi signals from being sent or received. Personal device security: Get a pack of two RFID signal blocking card holders. Compatible with: Most fob designs for most car manufacturers and model, including Range Rover, Skoda, Volkswagen, Toyota, BMW and more. Material: Constructed from a high-quality waterproof faux leather case with a metal lining for signal blocking. Sensitive data protection: Protects credit cards, car fob and other electronic devices. Secure: Complete with a hook and loop to keep items secure. Dimensions: 13.5cm x 10cm x 2cm. Rfid Signal Blocking Card Holder 2Pck | Living Social