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 printer Suitable for everything that is used as a nozzle, such as , 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: keep 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 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.