This is the Dynamite Machined Aluminum Black Servo 1/2 Arm for JR & Airtronics.
This product was added to our catalog on January 13, 2006
Wednesday, Feb 8 2012 (about 9 years ago)
Dynamite 1/2 Machined Aluminum Servo Arm, Black: JR/Air
Fits perfectly on my Spektrum Z590 servo installed in my Ofna Hyper 10TT