Great News! for USA buyers ,Ship from USA warehouse, after payment, within 3-5 days for receiving products! No taxes from customs, no damage, better service, please don’t hesitate! This item includes: 5 PCS Nema 23 Stepper Motor single shaft with 270 oz-in,3A holding torque,4 Leads 1, Stepper Motor Technical Specifications Part No.: 57BYGH627 single shaft Frame Size: NEMA23 Step Angle: 1.8 degree Voltage: 3.0VDC Current: 3.0 A/phase Resistance: 1.0 Ohm/phase Inductance: 3.5 mH/phase Holding torque: 19 Kg-cm 270 oz-in Rotor inertia: 480 g-cm2 Detent torque: 0.6 kg-cm Number of wire leads: 4Weight: 2.20lb (1.0 kg)Length: 76mmShaft diamter: 6.35mm (1/4″) Black A+Green A-Red B+Blue B- Please tell us if you need Double shaft or single shaft, we can manufacture both for you. If you need Double shaft, please tell us your requirements for length of front and rear shaft, as well as the diameter. So that we can offer you the quite good products, thanks! More Order quantites, more discount!!! Our products are mainly used in robotization, Spinning Automatization, Printing, Packing, Medica Machine, Make-up Equipment, Communication, Household Appliance, Water Pump, Milling Machine, Engraver Machine, CNC Routers.. etc automatic equipment of various trades. We ship worldwide!