This PTFE Tubing outer diameter is 6mm and the inner diameter is 4mm,which is suitable for the 3mm filament.It is mainly used for 3D printer install the inner tune.It can held the filament smooth siding and prevent the filament melting in advance.
- Length:1 meter
- Outer diameter: 6mm
- Inner diameter: 4mm
- Suitable for the 3mm filament