The best qualities of liquid ink and gel ink are blended into a super-smooth formula and are delivered via an exclusive ink/tip technology. Intensely vivid ink dries quickly without smearing or blotting, making it great for left-handed writers. Smooth latex-free grip provides uninterrupted writing comfort. Acid-free formula will not affect pH level of paper. Refillable with Pentel LR7 refill. Special Ink Type: Gel; Pen Style: Capped; Ink Color(s): Black; Pen Type: Roller Ball.