Card holder 2: Internal dimensions: 8.5cm H x 5.5cm W Holds 2 standard 8.5cm x 5.5cm credit cards. Perfect for ID cards, driver's licenses, badges, passes and more. Not suitable for thicker cards! QUICK ACCESS: A convenient thumb slot makes it easy to swipe with just one finger. A convenient top-loading design holds the card securely in place to prevent it from falling out. Robust: Made of sturdy polycarbonate that resists heat, abrasion or breakage. Effectively protect your cards from damage, bending or loss. Crystal Clear: Carefully crafted for maximum transparency, giving you ultra-sharp visuals. Easily read or scan your cards without removing the card sleeve. Portable: Easily attaches to retractable badge reels, lanyards or shoulder straps via the center slot. 2 side holes for cords, wires or key rings.