[Compatible With Multiple FDM 3D Printers]: This nozzle kit is compatible with Centauri Carbon and Centauri 3D printers. Please confirm your 3D printer model before ordering. [High Precision Nozzles]: The nozzle set is made of high-precision CNC machining, offering better thermal conductivity and high hardness. It features a smooth and burr-free inner wall, low viscosity coefficient, and nozzle error of less than 0.02mm. The chamfered and rounded design reduces resistance at the diamond angle, enabling smoother filament feeding and reducing clogging for precise and smooth extrusion during printing. [High Quality 3D Printer Parts & Accessories]: Made of high-quality hardened steel with advanced heat treatment, this nozzle provides better oxidation resistance and extended service life. The flat contact surface helps prevent filament leakage and printing head leaks. Offers stable performance and durability. Compatible with most high-temperature and low-temperature printing filaments available on the market. Note: Slight color variations due to lighting or display differences may occur and do not affect product functionality. Color: Black Material: Hardened Steel Package Contents: 5 x 0.4mm Nozzles Only the above package content is included; other items are not included. Note: Lighting reflections and different displays may cause slight color differences compared to the actual product. Measurement error allowed is +/- 1-3cm.