[Compatible With Multiple FDM 3D Printers]: This nozzle kit is compatible with Anycubic Kobra 2 3D printers. Please confirm your 3D printer model before ordering.[10PCS 3D Printer Extruder Nozzles Kit]: Input diameter is 1.75mm, output diameter is 0.4mm. Includes 5pcs 0.4mm hardened steel nozzles and 5pcs 0.4mm brass nozzles. Sufficient quantity and two different materials of hotend nozzles make it easy to replace them in time for quality printing.[High Precision Nozzles]: The nozzle set is made with high precision CNC machining, offering better thermal conductivity and high hardness. Smooth and burr-free inner wall, low viscosity coefficient, nozzle error less than 0.02mm. Chamfered and rounded edges reduce resistance at the diamond angle to the filament, enabling smoother filament feeding and reduced clogging. Provides precise and smooth extrusion printings.[ 3D Printer Parts & Accessories]: Made of high-quality hardened steel and brass, featuring advanced heat treatment process and improved oxidation resistance, which extends the service life of the nozzle. Flat contact surface helps prevent filament leakage and printing head leaks. Stable performance and durable. Compatible with most high-temperature and low-temperature printing filaments on the market.Note: Slight color variations due to lighting or display differences may occur and do not affect product use.Color: Photo ColorMaterial: Brass + Hardened SteelPackage Contents: 5pcs 0.4mm hardened steel nozzles, 5pcs 0.4mm brass nozzles. Only the items listed are included; other products are not included.Note: Lighting reflections and different displays may cause slight color differences from the actual item. Measurement allowance is +/- 1-3cm.