Hitec Sail Servo Arm 122mm long.
Suits HiTec and others.
Output shaft is 7.3mm approx. but could easily be mounted to any circular servo wheel.
Comes with adapter set to suit most standard size servos.
Molded plastic construction, white in color
Length from Center Hole to First Linkage Hole: 3.9″ (99mm)
Length from Center Hole to Second Linkage Hole: 4.3″ (109mm)
Click here to see set up video.