Water-based ink, environment-friendly, tasteless and non-toxic, soluble in water, easy to mix color, color and other effects.
double-headed design of a multi-purpose pen, NIB fine and smooth, wearresistant hair, soft and comfortable brush NIB, adjustable line size, small hole tip can be used for Hook Line.
Pen handle design is easy to grasp, non-slip pen cover at the same time with the ink color logo, applicable to hand-painted, DIY, hand account, design, illustration, and so on
