【Precise Design】: Precise 2mm inner diameter designed, specifically for 1.75mm. Outer Diameter: 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 3d printer Teflon tube is extruded and sintered with high-quality polytetrafluoroethylene (PTFE), safe and reliable【Wide Compatibility】: It perfectly fits with PLA, PLA+, ABS, PETG, TPU, and other filaments; Compatible with Ender 3,Ender 3 V2,Ender 3 Pro,Ender 3 Max,Ender-5,Ender 5 Plus,Ender 5 Pro,Ender-6,CR-10,CR-10S,CR-10 V2,CR-10 V3,CR-10 S4,CR-10 S5, etc