Model 28YBJ-48 Quantity 1 Color Silver + blue Material Iron Specification Decelerate stepper motor, diameter: 28mm, Voltage: DC 5V, Step angle: 5.625 x 1/64, Reduction ratio: 1/64; Weight: 0.04kg Features 4 phase 5 wires, can be driven via the normal uln2003 chip, also can connect to 2 phase; Can be used with development board; Directly plug to use, convenient to use, stepper motor use on development board Application Robotic application Packing List 1 x Stepper motor (23cm-cable)