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)