Merzy The First Pen Eyeliner

The advantages of Merzy The First Pen eyeliner are

Ultra-fine brush capable of creating even delicate lines

Freely create lines ranging from fine to bold.

Even beginners can easily create an eyeliner look.

Effective for creating a sharp eye look with vivid colors

However, it has the downside of smudging depending on skin's oil and moisture levels, and running out quickly because there is too little liquid.