Happy god pen

The old doctor sent a little girl a pen, the little girl was very happy, the old doctor was invented a pen because he saw the little girl sitting wrong.

This pen is not an ordinary pen. This pen is called a happy pen.

But this pen has a feature, which is characterized by the correct posture to get out of the water, if not right, there is no water.

Sure enough, the little girl is sitting.

The little girl is very happy.

The first grade: Zibo