I used this product to help organize index cards which I carry with me for memorization. The ring is light weight so it works great and it can be opened and closed as I add or remove cards. I happened to have a smaller hole punch which worked great with these rings. This product could also help parents with children who are tying to learn and memorize things. You can make your own cards punch existing or purchased cards add the ring and carry them with you to use when you are stuck waiting somewhere it will help keep the kids entertained and keep the cards together.