0.4mm Nozzles Kit High Flow High Temp Resistant Stainless Steel 3D Printer Nozzles for Elegoo Neptune 4 Neptune 4 Pro 10pcs1Applicable Models: 3D printer nozzle kit includes 10 stainless steel nozzles with high flow rate and high temperature resistance for Elegoo Neptune 4 Neptune 4 Pro. 2High Flow Rate: Thermal conductivity of 300W/m k, uniform heating, this 3D printer nozzle is twice the volume of ordinary nozzles and supports 600mm/s printing speed. 3Applicable Materials: This 3D printer nozzle is suitable for most materials, such as PLA, ABS, PETG, TPE, TPU, PC, etc, as well as high temperature filaments such as PEEK, PEKK, PEI, PSU, PPSU, etc. 4Excellent Material Handling: Extruder nozzles ensure rapid heating and continuous printing of high temperature wires, stainless steel can withstand temperatures up to 500C. 5High Thermal Conductivity: The roughness of the inner wall of the pipe is Ra<0.4, which reduces clogging, conducts heat quickly and makes printing more stable. 6Stable Extrusion: The inner wall of the 3D printer hotend nozzle is burr free, which enhances the fluidity of the materials, low viscosity coefficient, and more stable extrusion.