Associated brand Factory Team 23T Aluminum Servo Horn. FEATURES: For use on the Team Associated RC10B6 and RC10B6D buggies 23 tooth spline fits Airtronics, JR, and KO servos YOU WILL RECEIVE: Factory Team 23T Aluminum Servo Horn SPECIFICATIONS: Length: 0.61 (15.5mm) measured from center of holes jxs 08/12/16 ir/jxs