A pack of three metal servo arms on a 25-tooth spline, intended for servos from JX, Futaba, KST, GDW and other makes using the same output spline. Metal rather than plastic because the arm is what takes the load between the servo and the linkage, and a plastic arm will round out at the spline long before the servo itself gives trouble.
The spline count is the critical figure. 25T is one of the common standards, but it is not universal, and an arm from the wrong tooth count will not fit a servo at all — check the output shaft of your servo matches before ordering.
Pack of three, which covers a set of surfaces or provides spares.
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