Top Notch Teacher Products Manila Pockets are great for classrooms and student activities. Tried and true manila library book pockets are perfect for file folder games, hands-on manipulatives, behavior charts and more! Made of sturdy paper stock, these pockets ensure durability. Acid and Lignin Free. Repositionable. Made in the USA. Pockets measure 3.5" x 5". Each individual pack contains 35 Pockets, Bundle of 6 packs, 210 Pockets total.