Rage RC S084-16-6VP Standard Size Plastic Gear Analog Servo, Torque/Speed@6V 83/.16 Dimensions: 40.8  20.1  38 mm, Weight: 40 g Operating Speed: 0.18sec/60degree (4.8V), 0.16sec/60degree (6V) Stall Torque: 5kg.cm/69.56oz.in(4.8V), 6kg.cm/83.47oz.in(6V) Bearing Type: 2BB, Gear Type: Plastic