Sturdy Pressboard Expanding File Folders are ideal for active, daily use & expansive filing jobs. Gusseted spines allow the folders to expand to accommodate larger files & are reinforced with rip-proof tape to prevent splitting even when the folders are loaded to capacity. An under-cut front cover helps the back cover's tab stand out, making both labeling & in-cabinet referencing easier. Durable, 25-pt. pressboard withstands heavy use. File Folder Size Type: Letter; File Folder Color: Blue; Color Family: Blue; File Folder Material: 25-pt Pressboard.