... Small, low power, light weight, high efficiency, Low Noise, Long life. Product Details:Place of Origin Zhejiang ChinaBrand Name Superior ... reducerSmall, low power, light weight, high efficiency, Low Noise, Long life.Easy to assemble and dissemble, convenient maintanence High endurability ... 120, 150 double stage/ 1065, 1285, 1510 Ratios: Single Stage/ 9, 11, 17, 23, 29, 35, 43, 59, 71 Double Stage/ ...