... 3.12v dc gear motor GM13-030PA, 1.5 kg motor 1.Low noise and current2.Reduction Ratio: 1/3,1/10,1/35,1/63,1/86,1/115,1 ... /150,1/250,1/3603.15 ... mechanism,Robot,Financial apparatus DVD for automobileGear motor reduction ratio:3,10,17,35,63,86,115,150,250,360 ... .370.171.7550.61 GM16-030 mini motor of 1.5 kg motor