A great tool for teachers and students alike these Barker Creek library pockets hold plenty of index cards. Great for getting hall passes flash cards and other teaching tools in order these pockets will help make classroom life easier. Designed to hold standard 3 x 5 index cards. Handy pockets make a great organization aid. Helps you organize flash cards hall passes file folder game pieces spelling word lists library cards reading logs and other daily essentials. 3 1/2 x 5 1/8 library pockets store a variety of items. Red checks pack of 30 library pockets to fit with most room décor styles.