Uni NanoDia Color Mechanical Pencil Leads 0.5mm Mint Blue, 5 Pack/total 100 Value Set

Uni NanoDia 0.5mm Coloured Mechanical Pencil Leads Mint Blue You can easily erase it with an eraser, the force is increased by 40% and it is difficult to break About 400 million NanoDia are composed Pack of 5/set of 100 leads in total