This is a 6" Pro Series Servo Extension with Futaba J Connectors.

This extension goes between the receiver and the servo to make the wire longer.
One end of the wire has a male "J" connector, the other end has a female "J"
connector.

FEATURES: Pro Series heavy-duty radio accessories.
          New, custom-designed connectors offer extra flight insurance with a
            secure "click-lock" feature that guards against connectors
            vibrating loose.
          Gold-plated terminals improve conductivity and prevent oxidation for
            longer lifespan.
          Heavier, 20-gauge wire handles higher current loads with ease.

INCLUDES: One 20AWG, 6" Long Pro Series Servo Extension w/ J Connectors

SPECS:    Wire Color Codes: Black=Negative, Red=Positive, White=Signal.
          The Polarity tab is on the Signal side.
                                                                    JAL 9/13/00
                                                                          ir/jl