3D Printer 1.75mm Filament Pipe PTFE Tube 2mm Inner 4mm OuterFeatures:This product corrosion resistant、 good insulation、 high temperature resistance、 not easy ageing、 for strength.PTFE Tube as used for feeding 1.75mm filament in many 3D Printers.Specification:Inner diameter: 2mmOuter diameter: 4mmLength: 1m \/ 2m \/ 5m \/ 10m (Four sizes you can choose)Material: PETFTemperature range: -190\u2103 to 280\u2103Package included:1 x 3D Printer PTFE Tube