Savox SC0352 Features: Precise-made plastic gears forms as the solid and strong framework of our servos. Production and quality control of plastic component in our servos follow the standard of branded digital camera. Totally Green – from material to production, our servos are environmentally friendly Spec Check: Dimensions(mm): 40.7X20.2X39.4 Weight(g): 42.0 Speed(@4.8V sec/60): .16 Torque(@4.8V oz-in): 58.3 Speed(@6.0V sec/60): .13 Torque(@6.0V oz-in): 90.3 Gear: Industrial Plastic Bearing: 2BB Case: Plastic 25 Tooth Spline Frequency: 200-250hz Pulse Width Frequency: 1520