Amazon.co.jp: PTFE Tube, 1 Meter 2x4mm ID 2mm OD 4mm PTFE Tube for 3D Printer Parts Pipe J Head 1.75mm Filament Guide Tube 1PCS (Color: Light-brown) : Industrial & Scientific
PTFE Teflon tube outer Ø 4mm inner Ø 2mm per meter | Online Sell | Store in Perth Western Australia - 3D Printing Perth - Cirrus Link