The front of the Cardprotector is engraved with a nanolaser. The detailed patterns create a beautiful contrast between the machined aluminium and the raw aluminium. RIFD cards as long as they remain inside the aluminium Cardprotector are protected and wireless communication is blocked. If the RFID cards protrude 3 centimetres from the edge of the Cardprotector, the connection is weak but sufficient for short-distance communication. The colour of the article may vary slightly depending on the device used for navigation.