HS-311 Plastic Gear Standard Servo from Hitec - HRC31311S
The Hitec HS-311 is a high quality standard servo with precise resin gears and SMT circuitry. Offering outstanding performance and quality at an unbelievable price. The HS-311 servo also offers a higher torque than other standard servos. This is a great standard servo for your aircraft.
Features:

Higher torque than other standard servos
Precise resin gears
SMT circuitry

Includes:

One HS-311 servo with universal connector
One servo accessory bag