Pendaflex Letter Recycled Expanding File

8 1/2" x 11" - 5 1/4" Expansion - Polyester, Red Fiber - Red Fiber, Manila - Moisture Resistant, Rip Resistant, Laminated, Spill Proof, Reinforced Gusset, Acid-free - 10% Recycled - 5 / Box. Cross-bonded, rip-proof gusset provides lasting durability. Expandable design offers extra room for your files and documents.