ZEBRA JJM88 SARASA STUDY ink scale learning essential 0.5mm neutral water pen ballpoint pen learning pen

product features:
1.Ballpoint pen suitable for study
2.Since the reduction of the ink volume can be confirmed by the scale core, the learning amount can be visualized. The amount of learning = how hard you work, you can feel a sense of accomplishment and keep going every day.
3.By writing with an indelible ballpoint pen, you can improve concentration and prevent mistakes.
4.By repeatedly practicing the effect of writing, you can accumulate the ability to quickly fill in the answer column every day.
5.cram school endorsement
This product is approved by learning professionals at major cram schools such as W Waseda Sawami, Z-kai, Best Gakuin Shinakujuku, Terakoya Group, and Kitakyushu Preparatory School.
6.Neutral ink
Has a smooth writing feel. Compared with oil-based ink, the ink release amount is large, the reduction is fast, and it is easier to get the feeling of use.
In addition to the basic black, we have blue, a color that is popular among students for easy concentration, and red, which turns mistakes into correct answers for motivation.
7.Binder
The movable binder can be clamped on the thick plate to reduce the damage of the clamp.

Dimensions: Shaft diameter 11.0 x overall length 141.0 mm
Weight: 13g
Replacement core: BJF-0.5 core (RBJF5)
Ink: water-based pigment
?Core diameter: 0.5MM