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Replaceable Cartridge, EF Nib, Smoothly writing
Triangular ergonomic grip, correcting holding posture on the pen
Three colors of ink can write on many occasions
Liquid ink control, ink flow is suitable and smooth
Tumbleprevents designed cap,avoid falling
Nib: EF nib
Ink color: Black / Erasable blue / Erasable dark blue
Pakcage: Blister Card