The Sheet protectors are soft, have a good quality and are perforated at the edge with 7 holes. Top, bottom and in the middle is a round hole as any punches your traditional punch. Each between the two round holes are two oblong holes. In this respect, the Prosoekthüllen for ring binders are more than three Plastic fastener (the metal clips that are found in any standard folder which the filed the papers hold in the folder)
