Creality Upgrade Ender 3 Hotend, Assembled Extruder For Creality Ender 3 It's 100% Creality Original Upgrade Assembled Extruder Hotend. Original Capricorn XS Serious Bowden PTFE tubing with lowest friction 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 woodfills or ironfills. Pluggable: the heating tube and temperature thermistor that from control box, connect them with terminal housing and pin. Then you could plug the hotend kit, easier to replace hotend kit. With more terminal housing and pins as spare parts, in case fail installation and waste. MK8 Extruder Hot End kit, white wire was temperature thermistor, braided wire was heating tube 24V40W.