[Compatible With Multiple FDM 3D Printers]: This nozzle kit is compatible with for Neptune 4 Plus/4 Max 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, included 5pcs 0.4mm brass nozzles, 1pc 0.6mm brass nozzle, 1pc 0.8mm brass nozzle, 1pc 1.0mm brass nozzle, 2pcs 0.4mm hardened steel nozzles. Sufficient quantity and hardened steel material of hotend nozzles easy to change them in time for quality printing. [High Precision Nozzles]: The nozzle set is made of high precision CNC machining, with better thermal conductivity and high hardness, smooth and burr-free inner wall, low viscosity coefficient, nozzle error less than 0.02mm, chamfered and rounded to reduce the resistance of the diamond angle to the filament, smoother feeding filament, not easy to clog, to provide you with precise and smooth extrusion printings. [High Quality 3D Printer Parts & Accessories]: Made of