Hitec RCD 31085S HS-85BB Mighty Micro BB Servo Speed (4.8V/6.0V): 0.16/0.14 sec @ 60 degree Torque oz./in. (4.8V/6.0V): 42/49, Torque kg./cm. (4.8V/6.0V): 3.0/3.5 Size in Inches: 1.14x0.51x1.18, Size in Millimeters: 28.96x12.95x29.97 Weight ounces: 0.67, Weight grams: 18.99