[black pack]

Equipped with ultra-low friction jet stream inks. ]
A multi-functional pen with a 0.7 mm oil-based ballpoint pen and 0.5 mm mechanical pencil.
The worlds first revolutionary ink delivers a smooth writing experience with low writing resistance.
Also, since the ink dries quickly, it reduces the stress of getting dirty hands.
Twin ball mechanism also prevents ink backflow and includes a built-in spring tip to prevent ink leakage from reaching the nib.