Dual card holders have a top insert of 90 x 70mm and then a smaller insert at the bottom of 90mm x 18mm. These are perfect for conferences with the lower section being used to identlify the classification of the visitor. Made from PVC material and designed to be held by a lanyard with either simple j hook or alligator clip. These plastic card holders feature a centre hole for an alligator clip or two round punch holdes that will fit most lanyard attachments. The card inserts can be purchased from any leading office supply store. We also have in stock a 105mm x 80mm card holder or for an alternative try a card holder made from hard plastic.