These micro arms are Hitec original equipment. They are the arms that come with the HS-65MG, HS-65HB but will also fit the HS-56HB, HS-125MG and the HS-5125MG.
These horn fit the following servos: HS-56HB, HS-65HB, HS-65MG, HS-125MG and HS-5125MG
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