Features 1、Coexist power and speed, the middle gear is a metal gear, and the motor is thickened copper wire 2、Stable when working, gears are more wear‑resistant and can be used for a long time, very practical 3、Come with easy installation and strong interchangeability, very practical and convenient 4、Made of ABS, copper and alloy material, possess impact resistance, suitable for motor gear box of children's electric toys 5、Working voltage is 12V, motor speed for 16000RPM, come with high working efficiency Specification Item Type: Electric Motor Gear Box Material: ABS, alloy, copper Purpose: Motor gear box for electric toys Working Voltage: 12V Motor Speed: 16000RPM Hole Diameter: Approx. 20mm / 0.8in Total Length x Width: Approx. 200 x 120mm / 7.9 x 4.7in Motor Diameter: Approx. 38mm / 1.5in Package List 1 x Electric Motor Gear Box