Pilot Metropolitan Pop Roller Ball Pen - OrangePilot Metropolitan Pop Gel Roller Pen The Pilot MR Retro Pop Collection brings together the vibrant colors, energy, and motifs of the late 1960s and 1970s with the same materials and quality craftsmanship of the MR line of pens. These writing instruments feature brass barrels and stainless steel accents and nibs of the MR Line, along with striking new pops of color and coordinating retro patterns on 'middle ring' designs. The Collection is available