Heavy Duty File Folders: vinyl folders measure (11.6"W x 9.0"H), 0.5"H tabs. 1/3 Cut Tabs are writable and erasable using pencil or whiteboard marker (do not use permanent marker). Labels included. | Expandable Plastic File Folders: Fits in hanging file folders. 3 expansion scores at bottom of poly folder allows filing up to 0.8" stack of 8.5x11" letter size files (about 150 sheets of paper). | Long Lasting Poly File Folders: Made of durable plastic manila folder. Flexible, tear-resistant. Easy to clean, water-resistant. Acid-free to protect your valued documents. Reusable and recyclable. | Set of 12: Includes 2 each of Red, Green, Blue, Yellow, Orange, Magenta folders, reusable plastic folder, equal numbers of left right and middle tabs, 12 removable adhesive labels | For Office or School: Use sturdy colored folders for files which is more durable as plastic manila folders in hanging 3-tabs file folders letter size colored , Office supplies by Dunwell.