Maven Gifts: 2-Pack Carson-Dellosa Library Card Pockets, 50-Count Per Pack &ndash; Durable, Heavy-Duty Stock These Carson-Dellosa Library Card Pockets are constructed of durable, heavy-duty stock for reliable, long-term record keeping. Maven Gifts has bundled (2) 50-packs to help you stock up and save! These standard library card pockets are non-adhesive. An essential in libraries and schools, each of these manila pockets will hold a 3 x 5 card. Package contains a total of 100 library card pockets. Each 50-pack box measures 6 x 1.5 x 4.5.