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