￠37mm AA type motor mount red

Used on 30mm-diameter multi-rotor arms, motors with smaller outer diameter than 37mm can be used, two colors are available in one same dimension, the red is used on the front arm of multi-rotor model to distinguish the flying gesture of the model in the air while the silver one is on the rear arm to tell apart from the red frame in the front, two motors (above and below) can be assembled.