The ConcealPlus pop-up wallet is designed to hold 4 to 6 credit cards. To load your cards, stack them together evenly and insert them into the holder as one stack.If they don t slide in easily at first, try inserting them at a slight angle, with a little more pressure. This helps guide the cards smoothly into place. Once inserted, use your thumb to slide the lever fully upward - the cards will rise together in a staggered pop-up formation, ready for quick access.