Archival quality polypro. Use only with King Size binder, or Mint Sheet binder. Pages are free of softeners and additives that can harm your collectibles. It has a lighter, softer, less rigid feel than vinyl and is a sound choice for long term storage. Our pages have a standard 3 hole punch. Size: 10 1/2x11 3/8. Color: Clear. Sold in Packs of 100.