3Pcs 3D Printer 3.0mm Teflon Long Distance Nozzle Feed Tube PTFE TubeFeature:3.0mm: Φ4 x 6mm (inner diameter is 4mm, the outer diameter is 6mm)Temperature range: -190 ℃ ~ 280 ℃Long: 1MNozzle type: 3.0mm (optional)Package included:3 x 3mm Teflon Long Distance Nozzle Feed Tube