This is the Dynamite Machined Aluminum Blue Servo 1/2 Arm for JR & Airtronics.
This product was added to our catalog on January 13, 2006
kyu woung sim
Wednesday, Jan 31 2018 (about 3 years ago)
Dynamite Machined Aluminum JR, Airtronics, KO Servo Horn (Blue)
I bought it for my goblin 570 JR8717 servo and it loose fit a lot. I could not use it for cyclic servo. It playing a lot. I am not sure all these sero horns are defeated or only 3 of mine. I return it. Avoid this product. A lot wasted time.