Upgrade 3D Printer Parts PTFE Tube ID 2mm OD 4mm for 1.75mm Filament PC4-01 Tube Cutter Die Spring and Bowden Collet
https://www.vogueparade.com/shopping/EN/200003782/1/1005003431935118/upgrade-3d-printer-parts-ptfe-tube-id-2mm-od-4mm-for-175mm-filament-pc4-01-tube-cutter-die-spring-and-bowden-collet//