Pentel EnerGel XM Retractable Permanent Ink Gel Rollerball Pen 0.5mm Tip 0.25mm Line Black (Pack 12)

With its revolutionary low viscosity liquid gel ink, the EnerGel formula is quicker drying and smoother flowing than ordinary gel ink, giving a similar sensation to liquid ink. Because the ink dries quickly it's appreciated by right and left-handed writers alike, as it produces smudge-free results on paper or hands.