HS-45HB AGTT Micro Feather Servo from Hitec - HRC33045S

Hitec’s HS-45HB offers the economy and durability of their other popular micro servos, but now with a ball bearing supported output shaft and Karbonite gears.
Features:

Perfect for sport planes or foamies weighing less than 36 oz.
High Torque Brushed Motor
Virtually Indestructible Karbonite Gears
Transparent Case Provides Unique Look

Includes:

Hitec HS-45HB AGTT Micro Feather Servo
Horns and mounting gear