This is the standard size Metal Gear Digital Servo. This compact servo is continuous rotation and can accept 7.4 volts and deliver 17kg.cm maximum torque at 0.16sec/60°.
This high-quality servo is perfect for your mechatronic needs and if you want to get into robotics, this is the place to start.
The FB5118M servo comes standard with a 4-pin power and control cable (red=power, black=ground, white=data, and yellow=feedback) and all the accessories as shown in the picture.