Product Features: Widely Applicable: Compatible with 1.75mm filament, ensuring smooth feeding for models such as Ender 3, Ender 5, CR-10, K1, K1 Max, and all FDM 3D printers. Ultra-Smooth PTFE Tube: Designed for seamless feeding of 3D printing filaments, this tube is ideal for high-speed printing. Low Friction: Boasting a friction coefficient of less than 0.1, it reduces filament resistance, which supports faster printing speeds. Durable and Resilient: Withstands strong acids, alkalis, water, and various organic solvents. It is resistant to aging and deformation, even with prolonged air exposure, and can endure temperatures up to 260℃. Safe and Reliable: Constructed from high-quality, non-toxic materials, ensuring safety and reliability. Specifications: Product Name: Creality Ultra-Smooth PTFE Tube Color: Gray Material: PTFE Diameter: D4-d2 Temperature Resistance: -190°C to 260°C Melting Point: 327°C Compatible Models: All FDM 3D Printers Package Size: 200×150×5mm / 7.8x5.9x0.2in Package Weight: 50g / 1.7oz Packing List: 1 x Ultra-Smooth PTFE Tube (2M)