I use this product for sheet music. This way I do not have to whole punch it. I can put 2 pieces of single sheet music back to back and arrange the music the way I want. These work really well with either wet or dry erase markers and erase completely which then I don't have to mark up the original (bonus). The semi-clear surface is great because I don't have a free hand most times to move the music out of the glare of over head lights.