5 Credit Card Slots, ID Window, Bill Compartment Dimensions: 3.25" H x 4.25" L approx. when closed 15" Long Stainless Chain including Key Ring & Claw Hook Heavy Thread with Quality Stitching The finishing lining of the wallet is turned and stitched to enhance the durability of the wallet making sure the wallet lasts a long time to give you the most out of your money. The RFID feature in this wallet really takes the safety of our customers to the next level. The aluminum lining that is embedded in this wallet, blocks the signals for radio frequency identification. This technology will prevent your credit card information from falling into the wrong hands.