【Premium and Stylish】The exterior is made of premium carbon fiber texture material and high-quality PU leather, exquisite and beautiful, comfortable and durable. The inner layer uses premium double-shielding fiber, the signal shielding effect is perfect. This refined box can also be used as a decorative detail on your desk or at home to add a sense of prestige and elegance. 【Note】This model is small in size, can only be used to store car keys, does not support storing mobile phones. 【Protect Family Vehicles】RFID car key box, holds at least 4-6 keys. The internal dimensions of 3.9 x 2.95 x 1.85 inches are sufficient to place various items that need to shield the signal. Thanks to its compact and small design, it does not take up too much space and can be placed anywhere in your home, while being easy to carry. 【Prevent Car Theft】Owning the cage is the first step to protect your car. With the car keys in the box, the signal is blocked and criminals cannot copy the key signal to open the door and steal the car. (Note: Make sure to close the lid completely to ensure better signal blocking) 【Wide Use - NOT ONLY for Keys】You can put your credit cards, social security cards, passports, access cards, etc. in a box to protect your family! 【Safe and Convenient】It is safe to store inside and can be easily found when needed. It is a good storage box and signal shielding box. The box is not only designed to block car key signals, but also blocks signals from your contactless credit cards and so on.