Servo Arm Metal Single Side 1.25" Futaba

MPI 1.25" Single HD 4-40 Aluminum Servo Arm, for Futaba Servos by Maxx Products Overview: Heavy duty Anodized Aluminum Servo arms designed for Hitec, Futaba, Airtronics, and JR. In lengths of 1", 1.25", 1.5" for single arm applications, and 3" and 4" for double arm applications. All come with 4-40 thread.