Repeatedly use our durable and reinforced metal prongs with your medical charts and office files without worry of breaking of prongs or coming detached from the folder Perfect fit for your standard letter size client files, medical patient files, or office files No more paper cuts, paper tears or paper crinkling with our custom coated fasteners that increase fastener life and make add files easy Maintains quality and use for years with our durable paper folders with 11 pt blue paper stock and reinforced end tabs Perfect for use in a color-coded file system your classroom, legal office, or business office with our classic blue paper stock. We understand that when addressing filing needs for any busy office environment, you need to have durable folders that can stand withstand heavy daily use. Our letter size end tab fastener file folders have been designed and manufactured for use with standard end tab file cabinets. Constructed with thick 11 PT colored paper stock and bonded 2-prong fasteners, it’s easy to repeatedly add and remove large amounts of medical forms, business reports, and more without risk of the prongs breaking off or tearing through the folder cardstock. The reinforced end tabs are ready to have labels applied in accordance with your office’s color-coded filing or chart organization systems.