Features: 100% brand new and high quality The MK8 extruder nozzles are through long-term testing to solve the problem of plugging and missing materials to the greatest extent, low thermal conductivity, resistant to corrosion, high abrasion resistance. Excellent cleaning needles for 0.4 mm gold nozzles. These nozzle cleaning needles are very flexible and strong, they can be easily bent into the nozzle without breaking. Very suitable for clogged hard extruder nozzles. The inner wall of the MK8 nozzles is smooth and has no burrs, it's viscosity coefficient is small, and extruder nozzle diameter error is less than 0.02 mm, providing you an accurate and smooth extrusion Practical combination-The needle is specially designed for 0.4mm 3D printer nozzles such as Makerbot Creality, CR-10, Ender 2, Ender 3 etc. High pressure and long life. Suitable for all things used as nozzles, such as air brushes, sprinklers, garden hoses, shower sprinklers, dishwasher nozzles, etc. Package Includes: 5 x Cleaning Needles 20 x 0.4mm Nozzles Specifications: Material: Brass+Stainless Steel Nozzle Size:approx 13mm x 7mm/0.51x0.27in Filament: for 1.75mm Fialment Printers Product Weight: 70g Color: Gold Type: MK8 Brass Nozzles Nozzle Diameter:0.4mm note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. 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.