Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Notice: This hardened nozzle is only compatible with for 3 V3/ 3 V3 Plus/K1C/K1 Max 3D FDM printer. Easy Installtion: The nozzle adopts an all-metal integrated design, facilitating quick disassembly and convenient replacement. All-metal design: The heat break is made of copper alloy which Resistance Up to 300, more powerful overall performance. It's compatible with filaments like PLA/ABS/PETG/TPU/PP/PC/Nylon etc. Fast Printing: Hotend nozzle chamber is enlarged, the maximum flow rate can be up to 30mm3, supporting 600mm/s high-speed printing. Colour:Photo Color Material:copper alloy Package Contents: 2x 0.4MM Quick-Swap Nozzles 1x Thermistor 1x Ceramic heater 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.