RFID BLOCKING WALLET: SAFETY & PRIVACY - Our wallets are equipped with advanced unique proprietary blocking material, which blocks RFID signals and protects the valuable private information stored on RFID chips from unauthorized scans. Tested & Approved by Independent Test Lab. Tested from 10MHz to 3000MHz, including 13.56 MHz in which the credit cards operate. .FUNCTIONAL DESIGN - 17 credit card slots, 1 ID window with central cut out over, 1 zipper pocket for change, 3 currency pockets, and one pen loop, this wallet is suitable for cash, coins, cell phone like iPhone XR/11 Max/11 Pro Max(Phone Size:6.5"), passport and pen. .PRACTICAL - Great wallet with a detachable wristlet strap, it allows you to easily carry it in hand or put it in the bag. You can use it all the time it's so easy to carry around. The wristband is designed as a custom-made rope, which is easy to wear and take and to extend the service life. Practical size: 8.66 * 4.72 * 1.18 inches.