Full Extruder Assembled Kit Set PTFE Tube 0.4mm Brass Nozzle DC24V for Ender-3 V2 Item Type: Full Extruder Assembled Kit Model: For Ender-3 v2 Material: Aluminum alloy + ABS + brass(compose of a variety of complex materials) Purpose: For Ender-3/Ender-3 v2/Ender-3S/Ender-3PRO Nozzle Diameter: Approx. 0.4mm / 0.02in PTFE Tube Description: High Lubricity Additives make our XS Series tubing the lowest friction for Bowden tubing on the market. Less friction means more responsiveness, less retraction, more accurate prints, less slippage, wear, and tear on the extruder, and less clogging when printing chunky filaments such as some wood fill or iron fill. Lower retraction means time saved every time the extruder retracts. Over the course of a print, a few milliseconds here and a few there add up to a lot of time saved Description of Gray Extruder: 1 upgraded version of for Creality full metal for MK-8 extruder feeder drive 1.75mm filament, suitable for Ender 3/3 Pro/3 X/Ender 5/5 Plus/5 Pro/CR-10S/CR-10 Plus/CR 20/20 Pro/CR-X. The 1 x 1 meter original for Capricorn XS Serious Bowden PTFE tube has the lowest friction on the market.Less friction means stronger reaction force, smaller retraction rate, more accurate printing, less sliding, abrasion and tearing on the extruder, and less clogging when printing thick filaments (such as some wood filler or iron filler). 1 pair-Small and large pneumatic couplers secure the PTFE in the extruder and hotend. Extruder Size: Approx. 4.8 x 6.5 x 2.4cm / 1.9 x 2.6 x 0.9in