EMO brand Heavy Duty 4 Servo Extension with Futaba J Connector from Electronic Model Systems. FEATURES: Installs between the receiver and the servo to make the wire longer One end of the wire has a male J connector and the other end of the wire has a female J connector YOU WILL RECEIVE: One 4 (101mm) 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