This RCSF Elite E13DLM micro servo is designed for RC airplanes, helicopters, and gliders. It weighs only 15 grams (0.529 oz), yet it delivers 52.77 oz-in. of torque when powered by 6.0 volts DC. The E13DLM features a plastic and metal case, high-precision titanium gears, and a DC motor. It is a perfect pick for helicopter, airplane and glider applications. It comes with plastic control plastic arms plus mounting screws—aluminum arms are available as an option.