This item is manufactured in frosted/non-glare Hard Plastic. Each piece comes with a Slot and a chain hole at the top. Holds a standard prox card, CR80 size and the card is loaded from the side. Badge is securly held in place by a pressure point within the holder. Badge can be removed from holder by using the open thumb notch on the back of each holder. Card holding area measures approximately 3-1/2" X 2-1/8". Perfect for protecting those expensive prox cards, yet giving you access to them!