Pilot Gel Ink Refills for FriXion Ball 4 Gel Ink Multi Pen, 0.5mm, Black/Blue/Red/Green Ink, 6 Packs 12 refills total Value Set

4 Color Set: , Black, Blue, Red, Green, Pilot Gel Ink Refills for FriXion Ball 4 Gel Ink Multi Pen, 6 Packs 12 refills total Value Set, Smooth and easy to write, 0.5mm