3D Printer Extruder - Instantly provide improved print quality and reduce filament slipping by firmly grasping the filament between two threaded wheels locked together. No more skipped steps when extruding at high speeds or after retractions. Print faster with this superior design, which is able to feed much more filament into the hotend in the same period of time than stock plastic extruders. 100% Original Capricorn XS Bowden Tube for 1.75mm filament - Capricorn ptfe tube is regarded as the highest quality PTFE tubing in all of 3D printing. The tight tolerances make sure that the filament is lead directly to the hotend with as little room for error as possible between the extruder and the hotend. It is rated for withstanding the highest temperature in the market which is perfect for printing filaments such as PLA, PETG, ABS, Nylon. Fits for 1.75mm 3d printer Filament. Creality Die Springs - Those springs are extra firm and help to hold the bed level for longer while being