DescriptionAre you looking for a professional, yet affordable 3D printer nozzle? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional 3D printer nozzle must meet you needs. It is one of the best choices for you.Features- Color: As shown. - Material: Brass. - Size: 19 x 10 x 2.5 cm. - Filament: 1.75mm. - The use of a large number of MK8 brass extruder nozzles for 1.75mm filament provides a simple way to upgrade the hot end. - Suitable for 1.75mm 3D printer. By improving the internal surface finish, the extrusion force is reduced and the reliability of retraction is improved. - It is durable and stable.You can use this kit to repair the extruder, instead of replacing the new extruder when the extrusion reaches an irreparable blockage. - The throats can effectively prevent heat transfer, to avoid early expansion of feed, solve the problem of plugging head. - The throats is specially designed for 3D printers,suitable for makerbot or 1.75mm consumables.