What's in the box:

1pc MK8 3D Printer Extruder Kit 0.4mm Nozzle for 1.75mm Filament 3D printer Parts for Creality CR-10 CR-10S (Standard)

Features:
100% brand new and high quality.
Tip of the nozzle, aluminum heating block, throat pipe (built-in Teflon).
MK8 extruder Hot End kit, white wire was temperature thermistor, red wire was heating tube 12V 40W.

Specifications:
Material: Aluminum & Stainless Steel & Brass
Installation Type: External thread connection
Scope of Application: 3D printer
Nozzle Size: 0.4mm
Throat Pipe Length: 30mm
Aluminum Block Size: 2 * 2 * 1cm/ 0.8 * 0.8 * 0.4in
Operating Temperature Range: -40 ~ +260C (-40 ~ +500 F)
Thermistor & Heater Cable Length: 1M
Item Weight: 68g/ 2.4oz

Package List:
1 * Aluminum Bock
1 * Heating Tube (1 meter long)
1 * Nozzle
1 * Throat Pipe (built-in Teflon)
1 * Thermistor + Brass sleeve (1 meter long)