Pentel Refill Ink for EnerGel and Lancelot Gel Pen, 0.7mm Metal Tip, Blue Ink, 2 Pack (LR7BP2C)
Super-smooth liquid gel ink refill for Pentel retractable and Deluxe EnerGel pens. Writes medium lines with a 0.7mm metal tip. Writes bold lines with a 1.0mm metal tip.