You'll find hundreds of uses for these handy pockets. Self-adhesive on the back side, they adhere to file folders, binders, pockets, jackets or anywhere you need to store items safely. You'll find hundreds of uses for these handy pockets. Self-adhesive on the back side, they adhere to file folders, binders, pockets, jackets anywhere you need to store small items. Durable poly material is tear and water resistant. Acid free and PVC free.