Universal Spool Holder - Bags mods

This is an addon for the universal spool holder (https://www.thingiverse.com/thing:943563)
You can replace the back part, call bigtop by this one.

One model is for a standalone spool holher.
You must print the rolls and the side (with screws) for tht universal spool holder.

The one for the little monster must be fix on the side profil of the printer.

Both are made to put on a sealed bag (like Ziploc bag), with just on hole for the screw, where the filament exit.
For the little mons