Introduction

This model is a small pen holder that can be attached to the cover of your notebook to hold a pen.
There are three sizes to choose from, 8mm, 9.5mm, and 11mm, depending on the diameter of your pen. Choose a size that is slightly smaller than the diameter of your pen.
You can also choose between a blank model and a model marked with letters: "♥ 3D". The letters are more visible in consumables with a richer color.

There is a customizable modelhttps://www.thingiverse.com/thing:5028279。

It should be printed with a layer height of 0.4mm, without the need for support, so that the wall thickness is 2 layers.