[Length 5cm Blue-black]

[Length 5cm Blue]

[Length 5cm Erasable Blue]

Features:
Convenient pen-shaped design.
Independent ink tube, easy to carry and use, take out the pen of the suction apparatus, and then put the ink sac, after a few seconds can be writing.
Ink particles are fine, good fluidity, easy to plug the pen.
Ink Cartridges only, other accessories demo in the picture is not included.
Material: Plastic + Ink