Airplane Multi-Pack - 5 Pack of HS-311 Plastic Gear Standard Servos 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 higher torque than other standard servos.  This is a great standard servo for your aircraft.
Features:

Convenient servo five pack is perfect for balsa ARF models
Higher torque than other standard servos
Precise resin gears
SMT circuitry

Includes:

Five HS-311 servos with universal connectors
Five servo accessory bags

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