Wilson Jones Recycled File Pocket, Straight Cut, Letter, 3 1/2 Inch Expansion, GreenIdeal for any project. Open file expands to easily meet the demands for home and office organization. Provides a secure, convenient method of transporting files. Card stock. Straight cut tabs. Expandable File Folder Type: Top Tab Pocket; Size: Letter; Material(s): Card Stock; Color(s): Standard Green/Manila.