Specification: 
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<br />Weight: 45-50g/set 
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<br />Size: Diameter: 28mm/1.10¡± 
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<br />Power Supply(V): 5V 
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<br />Stepping angle: 5.625 x 1/64 Reduction ratio: 1/64 
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<br />5 Line 4 phase can be driven by ordinary uln2003 chip can also be connected in phase 2 development board used for.
<br />supporting the use of a direct plug and easy to use stepper motor used in the development board.
<br />Stepper motor driver board with ULN2003
<br />A, B, C, D four-phase LED indicates the status of the stepper motor work
<br />Stepper motor with a standard interface, when used directly pluggable 
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<br />Package Include:
<br />1 X ULN2003 Drive Module Board
<br />1 X 28BYJ-48 5V 4 Phase DC Gear Stepper Moto