Pentel Refill Ink for BL57/BL77 EnerGel Liquid Gel Pen, 0.7mm, Metal Tip, Black Ink, 1 - Pack (LR7-A)
Ink refill for EnerGel Liquid Gel Pen (BL57/BL77). Super-smooth ink glides across paper effortlessly. Quick-drying ink is ideal for left-handed writers. 0.7mm metal tip produces medium lines.  1 refill per pack.