This is a 12" Servo Extension with Futaba J Connectors. / / This extension goes between the receiver and the servo to make the wire longer. / On one end of the wire is a male "J" connector and on the other end of the wire / is a female "J" connector. / / INCLUDES: One 12" (305mm) Long Servo Extension w/ J Connectors / / SPECS: Wire Gauge: 24 / Wire Color Codes- / Black: negative / Red: positive / White: signal (polarity tab is on the signal side) / ir/jl