Excellent performance: TRONXY PTFE tube reduce friction and improve heat resistance, less clogging, less slippage and abrasion on the extruder, better filament glides and more precise printing High-temperature Resistance: -200 ℃ ~ 260 ℃. Flexible tubing is bendable but not easy to deform, ideal for smoothly following the moving 3D printer head Corrosion Resistance: PTFE teflon tubing has strong corrosion resistance, acid and alkali resistance, widely used in electronics, chemicals and industrial Aging Resistance: PTFE tubing can be exposed to ozone and sunlight for a long time and is not easy to age, has a long service life, suitable for use on 3D printer extruder