The 11 x 17 Landscape Polypropylene Express Sheet Protectors are available to fit Pina Zangaro portfolio books and those from most other major manufacturers. They have no black liner sheet and are punched only for use in screwpost books. They are also white near the edge holes are. The polypropylene has passed the Photographic Activity Test (PAT) and meets all ANSI requirements for archival storage. Packed in tens in a protective metallic, resealable bag. Pina Zangaro packages these sheet protectors with all of our Express Portfolio Books.
