GENUINE LEATHER -Our credit card holders are made with 100% high quality leather and are individually wrapped and boxed to perfection WHAT IS RFID? - RFID is the use of radio waves between devices to transfer data. Credit cards, payment cards, and driver's licenses all use RFID WHY USE A RFID CARD WALLET? - Personal information on these cards is vulnerable to theft by pickpockets using RFID scanners unless you have the special linings provided by a RFID blocking purse wallet PLENTY of SPACE - Our RFID card holder wallet design 20 x 10x 2 cm / 7.87 x 3.93 x 0.79 inch (L x W x H), 25 x Card Slots + 1 ID Window + 1 x Large Zipper Pocket, Can be placed with Iphone 7 Plus , larger bills , checkbook and multi cards , paper money, and so on