Secraft
SECRSA40D-F
Secraft - Double Servo Arm - 40mm / 1.5" - Futaba (25T) - M2 - Red
Note: most Hitec servos (HS-xxxx series) have 24T. However, the newer Hitec D-series (Dxxxx) have 25T, as well as HSB-xxxx series ! Make sure to double check on the servo specifications page which type of servo arm is required.