Servo Digitale HVS-ZS High-Voltage - High-Speed.
All HVS series servos are designed primarily to exploit the advantages of high voltage (7.2 V) and the benefits that gives in both speed and torque.
The HVS-ZS is the high speed version for cars yet can still deliver over 20 kg/cm of torque. Please check that your receiver can handle 7.4 V before using this servo at that voltage. Twin ball races with metal gears.