Multi-function Leather Key Holder Bag: Multi-function universal key purse easy to hold various car key and room keys at the same time. Keep your belongings secure.which can be your family and gift. Car key blocker: it is designed as a portable key protection bag only for a single key fob. It protects your car key from theft and protects your car key from damage, dust and scratches. Premium quality: hook design for hanging, internal key chain, PU leather carbon fibre and metal zip design. Practical and well stitched workmanship. Conveniently use it every day and also a perfect gift. Improved design: the interior design is like a small box. It is a of Faraday bag and box, which strongly blocks signals with high quality double layer carbon fiber material and thick shielding cloth and ensures isolation. It is designed to your keyring from thieves. Suitable size: the size of the key bag is 4.13*2.56*1.18inch/10.5*6.5*3cm. In addition, the bag is small, easy to carry and offers greater flexibility.