specialist id black dual card id badge holder - holds 2 cards - rigid hard plastic specialist id the specialist id ah150 rigid open-face id badge holder accommodates 2 standard credit card size id badges (one on the front and one on the back) making it easy to wear 2 photo id cards and have the front of each card easily visible. the cards can be easily removed from the holder, allowing easy access to your id badges. the badge holder has 2 slot holes so the badges can be hung in either horizontal or vertical format.