1.Mini compact, easy to carry:Put it in your pocket and walk around
2.Small pen, large capacity: Ink is enough for long periods of use once added, saving you valuable time.
3. Humane way to add ink : You can storage ink in the pen holder, can also use ink cartridge.
4.Fully transparent unique barrel shape : Using different colors ink to get different beautiful scenery.
5. Transparent color bring you comfortable visual enjoyment.
6.Pocket-size, best for travel or everyday life : Record your thoughts or feelings anywhere, anytime.