【Original Quality】: Creality official K1 series PTFE tube kit 1/2M; Selected the high-quality PTFE material. Good quality, low loss rate; It is especially compatible with K1, K1C, K1 SE, K1 Max, Ender-3 V3, Ender 3 V3 Plus, K2 Plus, Creality CFS filament system, K2 Plus, K2 Pro, K2, and Other 3D FDM Printers【Precise Design】: This K1 bowden tube has a precise dimension design; Inner diameter is 2.5mm, suitable for 1.75mm filament; Outer Diameter is 4mm; Accurate inner diameter and uniform tube shape ensure smooth filament feeding【Heat Resistant to 260℃】: High melting point, high-temperature resistance up to 260 ℃; Anti-aging, no deformation even after long-term exposure to air【Safety and Reliability】: Creality K1 Max bowden tube is extruded and sintered with high-quality polytetrafluoroethylene (PTFE), safe and reliable【Wide Compatibility】: Creality K1 Series teflon tube perfectly fits with PLA, PLA+, ABS, PETG, TPU, and other filaments.