Model: DS3225MG more torque higher speed Through; d the feeder is longer up to 15.75 inches (40cm), and also ships with an adjustable 25T metal servo arm Best for your DIA project: compatible with 1/8 and 1/10 scale tracks, weight; buggy, robotic arm and any applications in which; Equipped with high-precision potentiometers and high-definition digital chip, ensure stable performance, fast response, strong anti-interference ability; Dimensions: 1.57x0.78 x 1.59in (40x20x40.5mm); Color: Black Material: Metal DS3225MG RC hobby servos are designed for RC vehicle models; such as cars, airplanes and robots. It provides the functionality of lightweight, standard servo, fast large torque, waterproof, sensitive, responsive; It features an all-metal gear train, digital control electronics and double-ball bearings on the output shaft to reduce friction and provides easy access to the resting point adjustment potentiometer, making them great actuators to design; robotic ones. This new subject is a very good choice for students; and hobbyists. This will not disappoint you! Electrical Specifications: Operating Voltage Range: 4.8 - 6.8V Operating Speed (5.0V): 0.15s/60 degrees Operating Speed(6.8V): 0.13s/60 degrees Stall Torque