You will get 5pcs Brass,5pcs Copper plated,5pcs Hardened Steel Nozzle, each material has 5pcs different size.
These replace Nozzle are compatible with Elegoo Neptune 4plus/4Max.
Nozzles are made of high-quality materials with smooth inner walls, low viscosity, and a cutting chamfer design for smooth feeding and minimal blocking.
Copper alloy has high thermal conductivity ,high traffic is necessary for high-speed printing.
High Hardness, more wear-resistant, you can print different material filament.