9g Digital Hybrid Metal Gear Servo with 100mm (4") Lead from Freewing - MD31093-100
This servo utilizes both metal and plastic gears and is for Freewing 70mm - 80mm EDF jets and smaller-sized warbirds. It can be used with other aircraft with compatible specifications (see below).
Features:

Lightweight, efficient high torque metal \/ plastic (hybrid) gear servo perfect for 70-80mm EDF jets or smaller-sized warbirds

Includes:

Freewing 9g Digital Hybrid Metal Gear Servo with 100mm (4") Lead
4 mounting screws
3 servo horns