Stay organized with the all-in-one sheet protector and index. Avoid the added task of attaching indexes and eliminate the extra bulk. Includes laser or inkjet printer inserts for customization. Heavyweight sheet protectors are durable and are made of acid-free material, which prevents photocopy transfer. No sheet punching necessary, since they are already pre-punched to fit standard three-ring binders. For 8 1/2″ x 11″ document storage.