The Advantus PVC-Free Badge Holder is the perfect way to keep your vaccine cards or badges visible, clean and in good shape. The durable, clear polypropylene holder with a top flap provides protection from daily wear and tear. The die-cut slot hole and two circular punches allow easy attachment to lanyards, split-rings, card reels and badge clips (sold separately). Card holder accommodates cards up to 4 x 3, making it ideal for students, teachers, healthcare workers, police, volunteers and more.