[Quality]for K2 Plus Nozzles Kit. integrated nozzle design. Package contains nozzles 0.4mm x 4, sufficient quantity, easy to change in time to meet different printing needs. Note: Only suitable for K2 Plus [Quick-Swap]The 3D Printer nozzle adopts all-metal integrated design, which is quick to assemble and easy to replace, saving time and labor. When replacing the 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 Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! Color: As Shown Material: Chromium zirconium copper + titanium alloy + hardened steel Package Contents: 4 x One-piece bimetal nozzle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.