Keyless car protection: this car key signal blocking set is a must for your car protection. The car key signal blocker bag prevents your car's security system from being hacked. Protects your personal and financial data by preventing RFID scanners and readers from detecting the RFID signals of your cards.Perfect size and space for all car keys from brands: our Faraday bag with a size of 13.5 cm (5.25 inches) x 8.5 cm (3.4 inches), except to ensure that the Faraday bag works well, this practical Faraday bag for key fobs is the perfect size to protect your keys, integrated access cards or other small electronic devices.Stronger Signal Blocking: Premium PU material + zinc alloy hook + fully wrapped insulation perfectly ensure that the RFID car key box blocks of all signals. All you need to do is put your car keys in this Faraday bag to prevent your car security system from being hacked. Protect your car anytime and anywhere and ensure absolute safety.Easy to carry: zinc alloy hook on top for hanging on jeans or in handbag and bag. This keyring signal blocker smooth leather is easy to carry and offers a refined style. With an elegant and stylish appearance, this is a luxurious car key bag that you cannot miss!