[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 change 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 to filament flow, enabling smoother feeding and reducing clogs. Provides precise and smooth extrusion for high-quality prints. [High Quality 3D Printer Parts & Accessories]: Made of high-quality hardened steel and brass, featuring advanced heat treatment for improved durability and oxidation resistance, extending the service life of the nozzle. Flat contact surface helps prevent filament leakage and printing head leaks. Offers stable performance and long-term durability. Compatible with most high-temperature and low-temperature printing filaments available on the market. Note: Slight color variations may occur due to lighting and display differences. This does not affect product functionality. Color: Photo Color Material: Brass + Hardened Steel Package Contents: 5pcs 0.4mm hardened steel nozzles 5pcs 0.4mm brass nozzles Only the above package content is included; other items are not part of this sale. Note: Lighting reflections and different displays may cause slight color differences between the image and the actual item. Measurement allowance is +/- 1-3cm.