Poly-Smith PTFE PSG-1 - Presintered Prime Grade PTFE Resin
Creality Official Capricorn Tube Capricorn XS Bowden PTFE Tube 1M for 1.75mm Filament for Ender 3 Series/Ender 5 Series/CR 10 Series with Imported PTFE Resin, High Temperature Resistant, Non-toxic : Amazon.co.uk: Business,