Pentel EnerGel RTX Gel Pen, Retractable, Fine 0.5 mm Needle Tip, Black Ink, White/Black Barrel

The best qualities of liquid and gel ink are blended into a super-smooth ink and delivered via an exclusive ink/tip technology for the smoothest write. Vivid, acid-free ink dries quickly without smearing or blotting and is great for left-handed writers. Retractable.