RepRack Hanger for IKEA HUGAD 28mm - Marker (Dymo 9mm)

I recently printed and mounted a RepRack filament hanger, remixed by Stefan from CNC Kitchen, on the HUGAD curtain rod from IKEA. 

As I didn't want to permanently attach the filament type label, so I designed a marker that can move freely along the curtain rod tube. 

The marker is made to the size of a 9mm DYMO printer tape. I printed my markers on nylon using standard parameters. 

I hope that PET-G or ABS will also work well. I also tried printing on TPU, but they were a bit too loose. Maybe a harder TPU like 90A would work. 
 

Stefan's remix for IKEA HUGAD: https://www.printables.com/model/218404-reprack-hanger-for-ikea-hugad-28mm

RepRack's original design: https://www.printables.com/model/129024-reprack-open-source-spool-holder-and-storage-syste