This is the Metal Gear Set for the Hitec HS-5755MG Servo.
FEATURES: Replaces worn or broken gears in the HS-5755MG servo
INCLUDES: One each 1st, 2nd, 3rd and output gear
REQUIRES: Disassembly of servo
BOX DIMENSIONS: 2.25" W. X 1.00" H. X 3.00" L. BOX WEIGHT: .08 LBS.