Carry less when you leave the house with the Killspencer iPhone 7 Card Carrier 3.0. As the third rendition, this smartphone case gives you a streamlined everyday carry. The back has an integrated cardholder complete with a patented flat spring. With a simple press, you can access each of your cards. In fact, it can hold anywhere from 1 to 4 cards with total security. It’s ideal for taking your ID, credit card, train ticket, and more.