What's in the box:

Aibecy CR10 PRO All Metal Extruder Aluminum Alloy Extruder Block Compatible with Ender-3/Ender-3 Pro/CR-10/CR-10S Pro 3D Printer with 42 Stepper Motor (Standard)

Features:
All metal extruder for Ender-3/Ender-3 Pro/CR-10/CR-10S Pro 3D Printer.
Double gear extrusion mechanism, high extrusion force for smooth feeding.
Use for 1.75mm filament, like PLA, ABS, TPU, PETG, etc.
Made of high quality metal, sturdy, durable and work more fluently.
The extruder DIY kit need to be installed by yourself.

Specifications:
Color: Red
Metal: Aluminum Alloy
Direction: Right Hand
Package Size: 7.5 * 6.5 * 2.5cm/ 3.0 * 2.6 * 1.0in
Package Weight: 74g/ 2.6oz

Packing List:
1 * Extruder Kit