Glass Studio Matsubokkuri Glass Pen Storm Glass

Thank you for looking.

This is a glass pen from the Storm Glass series by Glass Studio Matsubokkuri.
Purchased from a second-hand shop.

Total length: approx. 17 cm
Clear glass
The barrel is a storm glass containing liquid that moves.
It has turned white due to the cold weather.

Includes instruction manual and box.

This is for display purposes and is in beautiful condition, but as it has been personally stored, please refrain from purchasing if you are looking for perfection or are sensitive.

There is no indication of the line width, so it is unknown.

It seems like it can also be used for writing, but I don't know how to use it, so I may not be able to answer many questions.