[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 nozzle materials allow for timely replacement, supporting high-quality printing. [High Precision Nozzles]: This nozzle set is manufactured using high-precision CNC machining. Features smooth, burr-free internal walls, low viscosity coefficient, and dimensional accuracy within 0.02mm. Chamfered and rounded edges reduce filament resistance, enabling smoother feeding and reducing the risk of clogs. Designed to deliver precise and consistent extrusion for improved print quality. [High Quality 3D Printer Parts & Accessories]: Constructed from premium hardened steel and brass materials, enhanced with advanced heat treatment for improved hardness, thermal conductivity, and oxidation resistance. Flat contact surface helps prevent filament leakage and ensures a secure fit. Offers stable performance and extended durability. Compatible with a wide range of high-temperature and low-temperature printing filaments. Note: Slight color variations due to lighting and display differences may occur. These do 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 listed items are included; other accessories are not part of the package. Note: Lighting reflections and display settings may cause minor color differences between the image and the actual item. Measurement tolerance is +/- 1-3cm.