High reliability, good stability, strong adaptability, Low noise, small vibration, operation, for your DIY Project:1:10 remote control car, fixed wing, RV, snake, etc. High Precision - Metal servo using dual design and advanced potentiometer to make the high linearity and accuracy of the servo. No overloading, No stalling Excellent Quality -SPT4412LV Servo Motor not only has gears undergoing hard oxidation treatment, but also has Metal case with good heat dissipation performance, in addition, the entire motor has somehow waterproof function Highest Quality Made: Our digital servo is made of strong mental gears, and Metal middle shell that enhances heat dissipation. The small servo motor has an IP66 water-proof Sealing ring and a dual ball bearing to service time. Our servo motor is high-speed but low noise Colour:Blue+black Material:Plastic + Metal Size:41x20.3x28mm Package Contents: 1 x steering gear 1 set x accessories Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.