Package Includes: 3 x 0.2mm 3D printer MK8 extruder nozzle 3 x 0.15mm nozzle cleaning needles in a bottle Features: The hardened steel nozzles have high hardness and high toughness, with good wear and heat resistance, can provide long use life than the normal brass nozzle, and use for most high-temperature 3D printer filaments.Compatible: 3D printer with MK8 style hotend external M6 thread, such as for Creality Ender 3/3 Pro, Ender 3 V2, Ender 5/5 Pro, CR-10/10S, Makerbot MK8, Reprap Prusa I3, Tevo Tarantula, Anet A8, and other 3D printers.Note: Don't use the needles to clean until the nozzle is heated over 200 degrees.After replacing the nozzle, please recalibrate the distance between the nozzle and build plate to ensure the quality of the print parts.