About this item 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 USA made paper folders with durable 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 bright blue paper stock.