Product Name: Aluminum Wallet With Elasticity Back Pocket ID Card Holder Rfid Blocking Mini Slim Wallet Automatic Pop up Credit Card Case Box Dimensions: Capacity: 2 ~ 8 banknotes, 4 ~ 6 credit cards Generally Length : 9.8cm / Width : 6.5 cm / thickness : 0.8 cm Product: Aluminum metal Wallets Open: Automatic Pop up Credit Card Material: Aluminum and Environmentally friendly Leather