Many ID and credit cards are embedded with radio frequency identification (RFID) chip. The chips allow stores to scan your ID or cards for transactions. However, criminals can also steal your personal data this way. Put your important RFID chipped card in this slim card holder. The RFID blocking sleeve prevents unauthorized access to your card data. There is a front windowed ID pocket, center RFID blocking pocket and two backside RFID blocking card slots. Made from soft bonded leather.