Feature:1. GREAT REPLACEMENT: This assembled replacement stock hotend is a plug and play replacement or spare unit for Ender series and for CR series printers. For more information on the for CR series, see the product description. Also included some additional brass nozzles, hot end socks and upgraded for Capricorn PTFE tubing which greatly improves the performance of this part compared to standard PTFE options2. COMPATIBLE MATERIALS: For Capricorn PTFE XS series can withstand the highest temperatures on the market and is ideal for printing special filaments such as ABS, Nylon and Polycarbonate. For Capricorn PTFE is also manufactured to the highest specification for 1.75mm filament to ensure there is no room in the tube once the filament is inside the tube3. UNIFORM FLOW: This perfect fir ensures better results when the reactive force moves and helps ensure a more consistent, even flow from your hot end4. STANDARD SIZE: The upgraded pneumatic accessories with metal teeth provided in this package are much better than stock options with plastic teeth or cheap locking mechanisms from many cheap 3D printer manufacturers. The extruder connector is PC4M6 and the hot end connector is PC4M10. These are the standard sizes for most open source 3D printers5. WITH HOT END SOCKS: 2 free hot end socks are also provided to help keep the temperature of the hot end more stable, which will improve print quality and consistencySpecification:Item Type: Assembled Hotend KitProduct Material: Aluminum, brassNozzle Diameter: Approx. 0.4mm / 0.02in.Package List:1 x CR10 Extruder1 x Blue Silicone Cover1 x White PTFE Tube 1meter2 x Black Silicone Cover4 x MK8 Brass Nozzle2 x PC4-01 Pneumatic Connector2 x PC4-M6 Pneumatic Connector1 x KJH-m62 x Blue BuckleNote:This product consists of standard length wires for Ender 3 series. Not compatible with for Ender 5 and for Ender 5 Plus.