Features:

• Adopting direct-injection ink storage design, the ink is directly injected into the pen tube to solve the trouble of changing the core, large-capacity ink storage, up to 800m writing length, 1 about 3 ordinary gel pens, fully meet your writing needs

• The multi-layer fin structure with dense top and sparse bottom can adjust the pressure in the pen to make the ink flow more stable and prevent ink break and leakage

• Tungsten carbide ball pen head, writing is not easy to scratch paper, 0.5mm thin writing, thick stroke

• Fully transparent design of the pen body, can more intuitive observation of the use of ink, everything in the grasp

• Clip in the notebook, easy to carry, to avoid inadvertent loss, even if you put the pen on the slightly inclined desktop, it will not roll off the desktop

• Color: Red

• Pack of 12