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N20 Reduction DC 3V 3.7V 3D Printer Motors approx 12 X 24mm N20 Reduction Motor DC 3V 3.7V 5V 6V Approx.12 X 24mm (Dia.*H) Descriptions of N20 Reduction Motor 1. 100% brand new 2. Voltage: 3V 3.7V 5V ...