5pcs 10x6cm Clear Vertical Hard Rigid Plastic Badge Holder Double Id Card Slot KA01 Clear and hard meterial Thumb slot for easy removing card Can hold 3pcs CR-80 Cards(3 3/8" x 2 1/8"),one is on top and others on back. Easily attach to lanyard, cord, chain Perfect for credit card, proxy card, photo id card,secure access card, school id card etc