These binders don't require that you punch holes in your document so it's great for pictures or any other documents that are printed near the edge of the paper. Instead the document is held in place with a pressure clasp which may take a little getting used to at first. You press down and over to fix the document in place and reverse to open. Very simple. The binder can hold up to 150 pages which is quite heavy. Most others don't exceed 100 pages. This is where my only ding occurs. With over 100 pages pressure alone may not be enough to hold your pages in place should you drop or shake the binder. I use a big clip to hold the pages to the back cover firmly until I'm ready to use it. I had seen these binders a long time ago but not recently. When I went looking for some nobody in any store knew what I was talking about. But staples had them (in an obscure place) at a very reasonable price.
My son was required to list all the ingredients used in the manufacturing of certain products! He had many fellow peers looking at it and he was able to clearly make his point. Teachers loved it and he was honored as Student of the Month! He placed a neon-red-colored sheet of paper to get the attention of others and bring them to his display table.
The clamp binder is very convient to organise my Church Business Meeting Minutes in. I don't have to worry about the pages tearing out as I would with the ring binder. They are also easy to file.