Hitec PN56345 Gear Set for HS-525BB

Features
Standard Servo Performance from a Micro Servo
Rugged Metal Gears
Ball Bearing-Supported Output Shaft
Standard Programmable Digital Circuit
Stronger Holding Power than the Analog Version

Features
Full Size Performance in a Mini Package
Durable Nylon Gears
Top Ball Bearings
Perfect for Applications Requiring a Small, Lightweight, High Speed, High Torque Servo