Savox SH-1257MG Super Speed Metal Gear Mini Digital Servo Dimensions(mm): 35.0X15.0X29.2, Weight(g): 29.5 Speed(@4.8/6.0V sec/60): .09/.07 Torque(@4.8/6.0V oz-in): 26.4/34.7 Gear: Metal, Bearing: 2BB, Case: Aluminum, 25 Tooth Spline 1 Year Warranty Against Manufacturing Defect