Application Examples Servos will provide various feedback like load, position, speed, input voltage, working current, working mode (servo mode, servo motor mode, etc. ) for advanced projects requiring closed-loop automatic control. Ideal choice for building quadruped robots, hexapod walkers, robotic arms and other robotic projects requiring multiple servos. (This product provides the open source models as shown in the picture below) Package include 1. ST3025 Servo x1