Function: Unique needle structure design can effectively clean the nozzle of the 3D printer, removing the blockage, suitable for mild maintenance of nozzle, 5 MK8 Nozzles can regularly replace Features: The 3D printer cleaning needle has high toughness and is not easy to break, simple cleaning the difficult-to-clean places like the feed gears; The nozzle is made of high-quality brass and has a long life 5 MK8 Nozzles 0.4 mm: 3D printer extruder Mk8 nozzles, high-temperature resistance, wearable, sufficient quantity for you to replace, achieving quality printing 10 Nozzle Cleaning Needles: 10 sizes of 3D printer cleaning drill bits to meet your needs, 0.105/0.2/0.3/0.45/0.5/0.625/0.7/0.8/0.9/1.025 mm nozzle cleaning needles for 3D printer extruder cleaning Tips: Be careful of burns after heating the nozzle, and the sharp cleaning needle, when use the 3d printer nozzle cleaning tool kit, please keep away from children and attention to use