Futaba AEC16 H/D Dual Servo with Extension 6 J FEATURES: Connectors slide snugly together to guard against vibrating loose; Gold-plated terminals improve conductivity and prevent oxidation for long INCLUDES: One Futaba J-Series Dual Heavy Duty Extension This is a Futaba J-Series Dual Heavy Duty Extension; This extension comes from the receiver and allows two servos to be connected for dual aileron servo applications; On one end of the wire is a male connector, the other end has two female connectors; The female connectors are molded together unlike a Y-harness that splits apart