Smead Inndura Poly Expanding File Pocket - 3.5" Expansion - 8.5" x 11" - Letter - 4 / Box - Yellow Poly File Pockets offer strong, heavyweight polypropylene construction and a 3-1/2" expansion to hold lots of paperwork. Use bright hues for color-coding. Drop front panels provide easy access to contents. Design also features 6" high, matching color gussets and top corners that are rounded, front and back. Acid-free, archival-quality poly material is waterproof and tear-resistant to protect contents. Sheet Size: 8.50" x 11"Color: YellowSheet Standard: Letter