[Wide Applicability] This Creality Ultra-Smooth PTFE Tubing Suitable with 1.75 mm Filament Smooth Feeding for Ender 3 Ender 5 CR-10 K1 K1 Max and All FDM 3D Printer. [Precise Inner Diameter Designed] Accurate inner diameter and uniform tube shape ensure smooth filament feeding. [Super Smooth and Non-stick for High-speed Printing] Super smooth with a friction coefficient of less than 0.1 reducing the friction resistance between the filaments and the inner wall during the printing process and supporting high-speed printing. [Strong Temperature Resistance Corrosion Resistance for Longer Service Life] Resistant to strong acids alkalis water and various organic Solvents.

Anti-aging no deformation even after long-term exposure to air. [Safety and Reliability] High-quality Non-toxic material for safety and reliability.