Features: 1. This product consists of a permanent magnet synchronous motor. 2. And one of the synthesis of speed reduction mechanisms can control a reversible synchronous motor. 3. It has low power consumption large torque low noise small volume light weight and easy to use features. 4. At the rated voltage frequency of the motor speed is not affected remains stable. 5. Most of the small and low power constant speed devices. 6. Widely used in windows a door opener slot machine money detector coin refund devices automatic doors peritoneal machine toys motor etc. Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Description: output torque: 20 Size: As the picture shown Color/Style: As the picture shown includes: 1 x Motor "