3Pcs Reverse Direction Metal Extruder Kit With NEMA 17 Stepper Motor For RepRap Prusa i3
Tax included.
Specifications:
Type: Reverse Direction Bracket (Right Direction)
Material: Aluminum-alloy
Suitable size: 1.75mm Filament
Package Included:
3 x Reverse Direction Metal Extruder Kit
3 x Stepper Motor 
Type: Reverse Direction Bracket (Right Direction)
Material: Aluminum-alloy
Suitable size: 1.75mm Filament
Stepper Motor: 42HD4027-01
See supplied datasheet for optional 57 oz-in NEMA 17 stepper motor.
Package Included:
3 x Reverse Direction Metal Extruder Kit
3 x Stepper Motor