The ID card holders come in a variety of sizes, and can be made from different materials, such as PVC or vinyl. They can also be clear, colored or transparent in nature. Some ID card holders have a slot on the top or side, so that the card can be easily inserted and removed. Others have a fold-over flap that secures the card in place.
Many ID card holders also have a clip on the back, allowing the holder to be attached to a lanyard, keychain, or belt loop. This feature is particularly useful for people who need to have their ID card on hand at all times, such as security personnel or employees who need to swipe their ID card to enter a secure area.
