C-Line Write-On Project Folders, Heavyweight Poly, Assorted Colors, 8.5 x 11 Inches, 25 per Box (62160) Colored coded folders with write-on tab; open on two sides Heavyweight archival quality polypropylene Write-on tab for easy identification; works with pencil, ball point pen or permanent marker Gusseted corner design expands to hold up to 100 pages 25 folders