Card Cover B/1 SimpleCard Cover B 1 Simple The "Card Cover B 1 Simple" is a versatile and practical solution for organizing and protecting your cards. With a simple functional design, this card cover provides a sleek and professional look. It's B 1 size ensures compatibility with various card types, making it suitable for business cards, credit cards, or other important cards you need to keep at hand. Secures your ID school cards, and office cards with a B 1 card cover.