At last, servo arms long enough for the extra throw needed on the electric 3D airplanes! The DU-BRO Micro Servo Arm XL includes four (4) single arms, as well as two (2) double arms. These arms have had extra special attention given to weight, strength and performance. Made from 100% virgin nylon, they can stand up to the stress of 3D aerobatics and still remain lightweight. The arms measure 1" from the center to the outer edge.
This version works on the following servos: Futaba 3108M, Hitec HS-50, Hitec HS-55, E-Flite S75.
$6.59 
Hitec Feather Light Servo HS-50
Hitec Ultra Micro Servo HS-55
E-Flite S75 Sub-Micro Servo