Features:There are two screws designed to hold the arm more secure to the servo shaft.
Specifications:27mm Futaba Standard 25T CNC Aluminum Single Side Arm - Black
Overall length: 27.5mm
Mounting holes spacing: at 20 mm (approx.) from center of the arm
the outer hole is threaded.
* Fits the FUTABA servos with splined output shafts.
1 x servo horn