"4 functions in 1" pen from the Accent range, is an all in one pen it has Ballpoint pen, Mechanical pencil, Marker and Touch screen pen all gathered in an elegant and contemporary designed pen, coated with precious palladium/rubber grip or a black matt/ palladium grip finishing. Whereas, "3+1" pen from the Accent range, has 3 ballpoint pens (black, blue, red) + 1 mechanical pencil gathered in an elegant and contemporary designed pen, coated with precious palladium/rubber grip or a black matt/ palladium grip finishing.