Compatibility: 100% Creality Original. This assembled hotend kit from Creality is a plug and play replacement for Ender 3/ Ender 3 V2 /Ender 3 Pro/ Ender 3S. | 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. | MK8 extruder hot end kit, white wire was temperature thermistor, braided wire was heating tube 24V 40W. Tip of the nozzle, aluminum heating block, throat pipe (built-in teflon). | Five 0.4mm brass nozzle are included in this hotend kit. This kit can work with different sizes of MK8 nozzle: 0.2mm/0.3mm/0.4mm/0.5mm /0.6mm/0.8mm/1.0mm. | Silicone Cover is provided to help keep temperatures on the hotend much more stable and this will result in higher print quality and consistency.