Schneider Topball 850 Rollerball Refills
STW 08501Rollerball refill uses smooth German ink to produce accurate, legible writing. Rollerball design offers a consistent flow of ink for great performance. Refill fits most refillable rollerball pens.
Schneider Topball 850 Rollerball Refills - 0.50 mm, Medium Point - Black Ink - Water Proof, Smooth Writing - 10 / Box