What's in the box:

Creality 3D Printer Accessories Dual Z Axis Rod Step Motor Upgrade Replacement Parts for CR-10 CR-10S (01)

Features:
Brand new and high quality.
Designed for upgrading 3D Printer CR-10 and make it more stable.
Replacement parts for CR-10S.

Specifications:
Lead Screw
Material: metal
Length: 51.5cm/ 20.3in
Diameter: 8mm
Weight: 160g/ 5.7oz

Step Motor
Number of Phase: 2
Rated Voltage: 3.6V DC
Rated Current: 1 Amp
Holding Torque: 0.48 Nm Typ. (Two phase on/rated current)
Phase Resistance: 3.6 ohm10% (20?)
Phase Inductance: 8 mH 20% (1kHz 1V rms)
Rotor Inertia: 57 gcm^2
Motor Weight: 0.28kg
Insulation Class: B (130?)
Step Angle: 1.8 5% / Step

Package List:
1 * Lead Screw Bracket with Brass Nut
1 * 34mm Stepper Motor
1 * Lead Screw
1 * Lead Screw Bearing Guide
1 * Z Coupler
1 * Dual Z Stepper Cable
1 * Z Motor Bracket with screws and t-nuts
3 * Longer m6 screws
3 * M6 nuts and spacers