Savox SH-1350 Super Torque Mini Digital Servo Dimensions(mm): 35.0X15.0X29.2, Weight(g): 26.0 Speed(@4.8/6.0V sec/60): .13/.11 Torque(@4.8/6.0V oz-in): 51.4/63.9 Gear: Industrial Plastic, Bearing: 2BB, Case: Aluminum, 25 Tooth Spline 1 Year Warranty Against Manufacturing Defect