Original Quality: 100% Original Creality K2 Plus/ Hi Combo Unicorn Nozzle Kit. Newest integrated nozzle design. Note: Suitable for Creality K2 Plus/ K2 Creality Hi Combo 3D Printers Upgraded Material: The heat break is made of titanium alloy, which can effectively reduce heat conduction. Creality K2 Plus Combo hotend nozzle is made of copper alloy and hardened steel bimetallic material, which has high thermal conductivity and high hardness for better performance. Supports PLA, ABS, PETG, TPU, PP, PC, PLA-CF, PA-CF, PET-CF multiple filament printing Quick-Swap: Creality K2 Combo nozzle 0.4mm adopts all-metal integrated design, which is quick to assemble and easy to replace, saving time and labor. When replacing the extruder nozzle, you can add the thermal grease that comes with the package, which is used to fill in the small thermal gaps and improve the efficiency of thermal conduction Precision Craftsmanship: Connections are tightly fitted, effectively preventing filament leakage. Smooth inner wall for smooth filament feeding. No burrs at the aperture, stable printing, not easy to block material. Advanced processing technology makes the printing model more smooth and delicate After-sale Service: There are more than 20 engineers for after-sales service and provide 24/7 customer service with 1-year limited and lifetime technical assistance. Please contact us via “ask a question”directly to get the professional assistance, Manufacturer: Creality