Thornton's Luxury Goods Ballpoint Pen Refill to Fit Parker Ballpoint Pens, 0.8mm, Fine Point, Blue Ink, 5-Count The standard ballpoint refill fits many brands of ballpoint pens that take a Parker Style Ballpoint refill. Bold colors and solid lines. Count on consistent ink flow for smooth writing. Black and blue ink colors available in fine or medium points. Blue Ink - Fine Point