Gaylord Archival Archival-Quality Letter Size File Folders w/Reinforced Full 1" Tabs (25-Pack) Preserve family records, newspaper clippings, photos and other paper documents for future generations Archival quality: acid-free, lignin-free, passed P.A.T. (Photographic Activity Test), buffered to resist acid migration Your family history deserves the same level of protection used by the world's leading cultural institutions Reinforced 1"H tabs resist damage and provide ample room for labels, while five score lines at the bottom of the folders allow for expanded capacity Store folders in archival-quality document and record boxes from Gaylord Archival (sold separately)