Pentel KFR7 Refill for Hybrid Gel Roller Pen Pack of 12 Blue

Refill for Pentel Hybrid Gel Rollerball K157, K227 and "Oh! Gel" K497 Waterproof and non-fading Robust metal tip Line width 0.35 mm / ball diameter 0.7 mm Pack of 12 – each refill individually packed