This is the Karty bankowe icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
These are physical cards, laminated rectangle cards with bar codes running down the back that can be scanned. It's essentially a rectangle with smoothed edges, on it is your name and card number that helps utilizing it. They come with your name written on them and are great for using online or anywhere else.