Features:brand new and high quality3D Printer Stepper Motor Kit, 200mm Metal Integrated Lead Screw Stepper Motors for VORON v0.1 Parts.Make sure the motor is connected to a constant current or chopper drive driver before testing the motor.Connecting the motor directly to a power source will destroy the motor.Advanced winding process, uniform arrangement of copper wire, long transportation is not easy to deform.3D printer stepper motor kit, 3D printer parts and accessories. Specifications:Item Name: Stepper Motor KitColor: blackMaterial: MetalScrew length: 200mm Note:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes:2 x NEMA14 stepper motor1 x NEMA17 stepper motor with 200mm TR8x8 lead screw1 x NEMA14 Round Pancake Stepper Motor with 10 Tooth Gear