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" 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