Refill for uni-ball Gel IMPACT Gel Pen, Bold, Black Ink, 2/Pack
Gel ink combines the durability of a ballpoint with the smooth nature of a roller-tipped instrument. Features acid-free, water-resistant and fade-resistant ink for thick, vibrant writing. uni-ball® ensures premium quality performance with every refill. Pen Refill Type: Roller Ball; Special Ink Type: Gel; Refill For Series: N/A; Tip Type: N/A.