Home > Servos > Accessories > AL Horn Both Arm 3.5   AL Horn Both Arm 3.5  S274 : AL Horn Both Arm 3.5  S274 : AL Horn Both Arm 3.5 Product Details     S274 AL Horn Both Arm 3.5" for JR servos S274 AL Horn Both Arm 3.5" for Futaba/Hobby servos