The Hitec HS-5055MG Digital Feather Metal Gear Servo is a digital upgrade of the HS-55 which has set the standard for affordable performance, offering precision components that have been engineered to provide long lasting trouble free service. Enter the new HS-5055MG digital, metal geared version... with this new servo Hitec takes ultra micro performance to the next level without breaking the bank. The new HS-5055MG is a perfect choice for ” smaller” high performance electric helicopters, aircraft and sail planes Specifications: Motor type: Corless Gears: Metal Torque 4.8v - 1.1kg Torque 6v - 1.3kg Speed 4.8v - 0.17 second Speed 6v - 0.14 second Size - 23 x 12 x 24mm Weight - 8g Manufacturer: Hitec Model: HS-5055MG Digital Feather Metal Gear Servo