The Advantus Binder Pouches are a classic companion for keeping pens, pencils, erasers, post-its, highlighters, or any other small materials organized and within reach inside of any standard-size 3-ring binder. Easily see through the clear plastic window on the front of the pouch to see what is inside and find the contents quickly. These pouches are enforced with metal rivets for extra strength and durability. Zipper closure keeps contents secure.