High stress and .0.4mm Gold Nozzles - The extruder dies can effectively prevent the printhead from spilling out and produce prints with and glossy polish. Reduce the resistance at the corners and avoid blocking the filament with a rounded chamfer. cleaning needles - The nozzle cleaning needles are very flexible and , they can be bent into the nozzle and will not break. Perfect for hard extruder nozzles clogged.Useful Combination - Needles are designed for 0.4mm 3D printer nozzles such as , -10, 2, 3, and so on. The needles are also suitable for everything that is used as a nozzle.Keep your 3D printer nozzles clean!Stop the annoying clogging of the extruder nozzles!A must for 3D hobby printerSuitable for everything that is used as a nozzle, such as , sprinkler nozzle, garden hose, shower head, dishwasher nozzles, etc.Product weight: 70gColor goldMaterial: copperSize: 20 x 0.4 mm 3D printer nozzlesPackage contents:20 x 0.4 mm 3D printer nozzles5 x nozzle cleaning needlesFriendly reminder: keep from children.Clean the nozzles until the nozzle is heated above 200 degrees.