This item inculdes : 1 PC Closed loop Stepper Motor Nema34 86HBM75-1000 6A 7.5N(1060oz-in) 1 PC Mactching Driver WTSS880 1 pc 3M extention cable Technical Specifications Part No.: 86HBM75-1000 Frame Size: NEMA34 Step Angle: 1.8 degree Voltage: 1.98V Current: 6.0A/phase Resistance: 0.33 Ohm/phase Inductance: 3mH/phase Holding torque: 7.5N.m 1060oz-in Rotor inertia: 1700g-cm2 Number of wire leads: 4 Weight: 5kg Length: 121mm