Specification:Gear Stepper Motor DC 5V/12V 4 Phase Step Motor Reduction Step MotorBrand new and high qualityDiameter: 27mmVoltage: 5V/12VStep angle: 5.625 x 1/64Reduction ratio: 1/645 lines cable 4 phase stepper motor can be driven by ULN2003 chipIt also can be connected as 2 phase to useOriginal bo..