More durable than standard file folders, these file folders with reinforced two-ply tabs provide extra strength where you need it most. Tabs are built stronger to last longer. 1/3-cut tabs come in assorted positions to help reduce filing and retrieval time. Use these colorful folders to categorize different types of folders or to complement your company colors or decor. Letter-size folders are made of 11 point stock that is acid-free and archival-quality.