Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5896458.

ReFill PLA is manufactured for usage with re-usable master spools like in this model. This filament reduces your carbon footprint significantly as packaging waste is reduced to an absolute minimum.

Used materials: FormFutura Refill PLA Pastel Blue

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Note: If you like to print in multicolor be sure to download the refill-spool-black-lines.stl and refill-spool-red-f.stl too.