Archival Photo Storage Envelopes, 1 Case (120) 7" X 5" John Porter Everyday Archives Includes 120 Envelopes - 7" x 5" Envelopes Acid-Free & Lignin-Free Perfect For Storing Photos, CD's, Negatives, and Index Prints Protect The Longevity Of Your Photography Media By Storing Properly Passes ANSI (American National Standards Institute) Photographic Activity Test. Independently tested by Wilhelm Imaging Research, Inc.