This CMYK color bar design is really familiar to anyone who works in printing (cyan, magenta, yellow, and black), so this would be especially appreciated by printers and designers. Each Mighty Wallet is made from a single folded sheet of Tyvek (super-thin, super-lightweight plastic microfiber material). Strong and durable, it has 2 large pockets (for cash and receipts), 2 quick-access business card pockets, and 2 expandable credit card pockets to hold plenty of cards. They're printed with environmentally friendly ink, partially made from recycled materials, have a writable surface, and will stand up to years of use. Really nice gifty presentation.