[Quality Assurance]100% all-metal 3D printer extruder. High quality aluminum material and sandblast to surface oxidization, ensuring this gray extruder is last for long term use. Works plastic stock extruder. 3D printers accessories for -3 V2/-10S. [Work Better]Our 3d printer extruder kits have an adjustable bolt so that you can adjust the pressure of the extruder gear as needed. The extruder drive has better stronger pressure pushing the filament into the printer nozzle and so will improve the printer's performance. [Improved Performance]The optimized extruder with metal extrusion and hotend kit pushes the filament into the printer nozzle, greatly making the metal extruder retain power in filament feed-in. And the beveled filament intake can prevent scraping the filament as it is pulled into the feeder. [Easy To Install]DIY kit and you need to assemble by yourself. The full necessary screws & parts kit for the extruder is included. Colour:Silver Material:Metal Package Contents: 1 set * extruder parts kit Only the above package content, other products are not included. Note: Light reflection 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.