A characteristic:
It is the multifunctional pen which I can customize, a refill for the pre-feel. A gel ball-point pen core. NJK-0.5 core. Prefill.

Product specifications:
??Ball diameter: A 0.5mm, extra-fine ?? ink color: Peer blue ?? ink: Aqueous color

??Body size: Greatest dimension ?? 3.0* 98.2mm in total length
??Body weight: The 0.7 g body: S3A11, S4A11