This is the community developed version of the Polymaker Master Spool design. The unique design features include the following.

• Slots to strap down a partial spool to reuse the master spool on another refill. (This feature may not always work as the straps need to be thin enough to fit between the cardboard core and spool flange. The strap in the image below is designed to work with this spool and can be found here)

• Integrated Filament clip full 360°.

• Printable snap in swatch.

• Multi-Color and single-color options.
• Compatible with Polymaker and Bambu Standard refills.