【Blocks All Types of Signals】: Such as calls, SMS, WiFi, 4G, Bluetooth, RFID, NFC. Blocks and unblocks in just 5 seconds! Place your car key in the pouch to prevent criminals from stealing vehicles. No longer worry about thieves amplifying your key signal and opening the car, effectively preventing your keyless keys from being accessed remotely. 【High-Quality Materials】: The car key security pouch is made of high-quality artificial leather, which not only provides an elegant appearance but also a soft and comfortable feel. 【Easy to Carry】: Perfect size of 12.7 x 8 cm, our products are designed and tested on 99% of cars on the market to ensure suitable space and maximum protection. The compact size allows you to carry it with you at all times, just put it in your pocket or wallet, it takes up negligible space. 【Convenience】: The smaller/front pocket is anti-radiation, perfect for storing ID cards, bank cards, etc. The larger/back pocket is for signal blocking, perfect for storing car keys. 【Wide Use】: The Faraday bags rfid signal blocking pouches block all signals for all devices that can fit inside. You don't need to consider model and brand. Note: All data is measured manually, please allow 1-3 cm error due to differences in light and screen, there may be some color differences, please refer to the actual item received.