-18-20 plastic cards -2 full-sized long billfold area -6 card pockets/two ID windows -Zipper pocket in the interior -Expandable interior can hold phone -Detachable wrist strap -Perimeter zip keeps everything from flying out onto the subway track -Dimensions: 7½" wide x 4½" tall, 12.7 mm thin -Materials: super-thin top grain leather (outside), ultra-thin nylon microfiber (inside)