Two piece spool for ribbon or other thin material. 9mm bore will fit 1/4" dowel. Has a 100mm diameter with 20mm barrel and 100mm flange. Will fit materials up to 36mm wide.

Fitting is tight on my printer so a little force is needed to slide the parts together and twist to lock.

I've only tested this print with PLA. 0.4 nozzle and 0.12 layer height.