extruder: high quality compatible with Creality CR-10 CR-10S S4 S5 3D printerCR10 extruder upgrade-easy to install: the parts out of the box are perfectly aligned, you can make your printer up running in 5 minutes, it will work like a new printer Nozzle tip, aluminum heating block, throat pipe (built-in PTFE) MK8 cr10 extruder hot end kit, white wire is temperature thermistorspecification:Installation type: external thread connectionScope of application: 3D printerVoltage: 12V Power: 40WOperating temperature range: -40-and260 Celsius (-40-and500 Fahrenheit)colour: black, goldMaterial: stainless steel and brass and aluminum alloysize: Aluminum block size: approx 20 x 20 x 10mmPackage contents: 1aluminum block1heating tube (heating tube 1m long, 12V 40W)1M630mm throat pipe (built-in PTFE)1thermistor and brass sleeve2cooling fan40 4mm nozzleNote: The CR10 extruder head kit is an original replacement part, only suitable compatible with Creality 3D printer CR-10 / CR-10S / CR-10S5 Only the above package content, other products are not included Note: Light shooting different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is 1-3cm