Premium and Stylish - The exterior of the Faraday cage is made of premium carbon fiber textured material and high-quality PU leather, exquisite and beautiful, comfortable and durable. The inner layer uses premium double-shielding fiber, providing perfect signal shielding. This advanced Faraday box can also be used as a decorative detail on your desk or at home, adding a sense of prestige and elegance. Protect Family Vehicles - RFID car key box, holds at least 4-6 keys. Its internal dimensions of 9.9 x 7.5 x 4.7 cm are sufficient for various items that need to be shielded. Its compact and small design does not take up too much space and can be placed anywhere in your home, while being easy to carry. Prevent Car Theft - Owning a Faraday cage is the first step to protecting your car. With the car keys inside, the signal is 100% blocked, preventing criminals from copying the key signal to open the door and steal the car. (Note: Make sure to close the cage completely for better signal blocking.) Wide Application - NOT ONLY for keys - You can put your credit cards, social security cards, passports, access cards, etc. in a faraday box to protect your family! Safe and Convenient - It is safe to store inside and easy to find when needed. It is a good storage box and signal shielding box. The Faraday box is not only designed to block car key signals, but also to block signals from your contactless credit cards and so on. Premium double-shielded fiber. The inner layer uses premium double-shielded fiber, providing stronger signal isolation. Note: Make sure to close the lid completely to ensure better signal blocking.