5 Pieces Hardened Steel Nozzle 0.4 Mm/ 1.75 mm 3D Printer Mk8 Nozzles High Temperature Wear Resistant Compatible with Ender 3/ Ender3 Pro, Prusa I3, Makerbot Creality Cr-10 All Metal HotendDurable material: MK8 extruder nozzles are made of hardened tool steel, good abrasion resistance, heat resistance and corrosion resistance, sturdy construction makes them durable to serve you for long time, suitable for 3D printing at high temperatureGood performance: this hardened tool steel nozzle has higher toughness and hardness, not only suitable for common 1.75 mm 3D printer filaments, but also can print filaments of carbon fiber, fiberglass, etc.High precision: the inner wall of the MK8 nozzles is smooth and has no burrs, the viscosity coefficient is small, extruder nozzle diameter error less than 0.02 mm, provide you a accurate and smooth extrusionCompatibility: these 3D printer nozzles compatible with MK8 hotend for Creality 3D printers, such as Ender-2/ Ender-3/ Ender-3 pro/ Ender-5, also compatible with Creality CR-10 all-metal hotend, Prusa i3, Anet A8, Reprap, etc.What you get: package comes with 5 pieces of black MK8 nozzles, the size is 0.4 mm, sufficient quantity to facilitate your timely replacement, achieving quality printing