It combines four-color oil-based ballpoint pens (black/red/blue/green) and a 0.5mm mechanical pencil to meet a variety of writing needs. The pen comes with an eraser and a strong pen clip, which can be used to clip thick boards, notebooks, and folders. It is convenient for meetings, classes, and on-the-go use.

The 0.7mm oil-based pen is smooth and easy to write with, while the 0.5mm pencil is detailed and clear, so one pen is enough for office writing.