Fun and functional! Terrific Pocketsâ are just the right size to hold a generous stack of flash cards, library cards, and index cards, making them ideal for word walls, file folder games, classroom helper charts, sorting, and more. Durable pockets feature higher tabs, so they”re less likely to catch or tear. 3 1/2” x 5 1/4”. 40 per pack. Coordinates with Owl-Stars! Collection.