DS1210 Titanium Gear Standard Digital Servo from MKS
This is the MKS DS1210 Titanium Gear Standard Digital Servo. The DS1210 is a low-cost, water resistant, titanium gear servo that is well suited to surface and aircraft applications, and is an excellent cyclic servo for any 600, 700 and 800 size RC helicopter.
Features:

Aluminum body
Titanium gears
Dual ball bearing output shaft
Created for all around use in RC model cars, airplanes and helicopters
Water and dust resistant sealed case allows servo to operate in extreme environments
Perfect size, weight, and torque for 600, 700, and 800 size RC helicopters

Includes:

MKS DS1210 standard digital servo
2 Servo arms
2 Mounting brackets
Set of screws