Repeatedly use our durable metal prongs with your medical charts and office files without worry of breaking of prongs or coming detached from the folderPerfect for storing over 100 files or larger bulky files with our durable 6 section classification folder with thick 25pt Red pressboard 17pt kraft paper dividers and strong 2 Tyvek expansionQuickly and easily organizing your standard letter size client files medical patient files or office filesOur red folders are perfect for use in a color-coded file system in your classroom law office or business office