A great choice for handing out data cards at expos, conferences, or meetings, this 50-pack of Rigid Plastic Horizontal Permanent Locking Holder from BRADY PEOPLE ID keeps your information safe, while making an impression. These clear plastic, data/credit card size holders feature a locking end piece (included) that snaps permanently into place, locking cards inside. The holder must be broken to remove the cards. It holds two 30mil (750mic) cards.