HS-225MG Ball Bearing Metal Gear Mighty Mini Servo from Hitec - HRC32225S
The analog HS-225 series represents a good value with performance that rivals other larger and more expensive servos. Ideal for applications that call for a small, lightweight, high speed, high torque servos such as a sailplane and other weight-sensitive applications, the HS-225MG high performance mini servo features a top ball bearing, metal gears and is built with state-of-the-art SMT technology.
Features:

Small, lightweight, high speed, and high torque servo
Top ball bearing
SMT technology
Indirect drive
Hybrid\/ Circuit

Includes:

One Hitec HS-225MG ball bearing metal gear mighty mini servo with universal connector
4x screws, grommets, and eyelets
3x servo arms
1x wheel