World debut - Ration pump leather coat pen

This pen was designed for offer ration leather coat, so you can paint leather edge equably.

Each kit will offer 10 different containers, so you can contain 10 color. 8 paint tip.

The shell is aluminum alloy and all gears are stainless steel. So it can bear very long time use.

Here is the video: https://youtu.be/iif0JCkMCcw