This is a optional Hangar 9 "Spline-Loc" 1.5" Aluminum 1/2 Servo Horn and is intended for use with JR, Airtronics, and KO Propo servo's. Hangar 9 heavy duty servo horns feature a 'Spline-Loc' connection that insures accurate, attachment to the spline and slop free surface movement.

Features:

• Spline-Loc insures a no-worry connection to the servo locks in place two ways, at the spline and with the servo attachment screw
• Black powder coated finish- Maintains a quality look and finish