Features:
Widely Application:  This Ultra-Smooth PTFE Tubing Suitable with 1.75mm Filament, Smooth Feeding for Ender 3, Ender 5, CR-10, K1,K1 Max and All 3D Printer.
Ultra-Smooth PTFE Tube - Smooth feeding of 3D printing filaments, preferred product for high- printing.
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- printing.
Strong Resistance Corrosion Resistance for Longer Service : Resistant to strong acids, alkalis, and various organic Solvents. -aging, no deformation even after long-term exposure to . Able to withstand max. 260℃ .
Safety and Reliability: High-quality material for safety and reliability.

Specification: 
Product Name: Ultra- Smooth PTFE Tube
Color: Gray
Material: PTFE
Diameter: D4-
Resistance: -190°C to 260°C
Melting Point: 327°C
Compatible Models: All 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