Aluminum Metal 25T Servo Arm Round type Disc Matal Horns For MG995 MG996 ACE Robot25T standard disc rocker Hole inside the thread, easy to install! Default silver white. Rudder disc for most of the standard steering gear MG995 MG996 TR213 DS3115 and other standard 25T standard servo Weight: 2g (four holes are all M3 threaded hole) Support all the steering gear and stent