High stress and long life. 0.4mm Gold Nozzles - The extruder dies can effectively prevent the printhead from spilling out and produce consistent prints with smooth and glossy polish. Reduce the resistance at the corners and avoid blocking the filament with a rounded chamfer. Excellent cleaning needles - The nozzle cleaning needles are very flexible and robust, they can easily 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 Makerbot Creality, CR-10, Ender 2, Ender 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 every 3D hobby printer Suitable for everything that is used as a nozzle, such as Air Brush, sprinkler nozzle, garden hose, shower head, dishwasher nozzles, etc. Product weight: 70g Color gold Material: copper Size: 20 x 0.4 mm 3D printer nozzles Package contents: 20 x 0.4 mm 3D printer nozzles 5 x nozzle cleaning needles Friendly reminder: Please keep away from children. Clean the nozzles until the nozzle is heated above 200 degrees. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.