motor It has good wear resistance, high temperature resistance and vibration resistance. Gear technology, after processing, high precision, good reliability, can guarantee stability under high life. High quality metal material, solidly constructed, sturdy and durable, effectively protect the gear box motor body. We only offer high quality motors! Any quality issues, please feel free to contact our customer service! Perfect for mini fan,electric toys and science experiments etc.Will work with many power sources batteries and solar cells.