This is the Heavy Duty 9" Servo Extension with Futaba J Connector from Electronic Model Systems. FEATURES: Installs between receiver and servo to lengthen wire One end of the wire has a male "J" connector and the other end of the the wire has a female "J" connector INCLUDES: One 9" (228mm) Heavy Duty Dual Servo Extension w/J Connectors SPECS: Wire Color Codes- Black: negative Red: positive White: signal (polarity tab is on the signal side) cnh 9/30/08 ir/jxs