Michael Kors Mens Slim Billfold Wallet and Key Fob Set - Black 100% Leather Gunmetal Hardware Interior: 1 Full-Length Billfold Compartment, 6 Credit Card Slots + 2 Side Business Card Slots (Fits Up To 5 Business Cards)+ 1 Key Fob Interior Lining: 55% Polyester/45% Cotton 4.25"W X 3.375"H X 0.75"D (Slim Billfold), 3.75"W X 1.5"H (Key Fob)