Spool holder - Modular

I present spool holder for filament.

It is a modular type stand. 

You can use it as a one stand for one filament spool.

You can also fix it together by the screws M10 and built one longer spool holder, on which can put many spools. 

How to fix single stand together is presentend on the picture in red circles. Single holders you can fix it by the added screws M10 wchich are added as the model to print. There is alley key too, which you can print and use it to screw it.

To connect stands togehter can use normalized steel screw M10 from too.