Black Alloy Servo Arms from CORE RC.  These alloy offset servo arms are ideal for a variety of vehicles.
 

Improved strength with pinch bolt design.

Multi hole positions 15.5mm, 18.25mm, 21mm, 23.75mm

6.1mm offset with forward facing ball or 3.65mm with reaward facing ball.

23T KO/SANWA spline.