Value for money: 10 pieces stainless steel nozzles and 16 pieces brass nozzles,5 nozzle cleaning needles,1 Nozzle Spanner,possesses 0.2 mm,0.4 mm,0.5mm,0.6 mm,0.8mm size, sufficient quantity to facilitate your timely replacement, achieving quality printing High precision: the inner wall of the 3D printer extruder nozzle is smooth and has no burrs, its viscosity coefficient is small, and extruder nozzle diameter error is less than 0.02 mm, providing you an accurate and smooth extrusion Premium material: Our MK8 extruder nozzles are made of stainless steel, harder than normal brass nozzlesstainless steel material is durable to use for a long time with the good heat resistance and corrosion resistance, abrasion resistanc Good performance: this MK8 nozzle has impressive toughness and hardness, not only suitable for common 1.75 mm 3D printer filaments, but also can be applied for printing filaments of carbon fiber, fiberglass, etc Extensive Compatibility: Outer