This is a Heavy Duty 6" Servo Extension with Hitec-S, JR, Airtronics-Z Connectors. This extension goes between the receiver and the servo to make the wire longer. One end of the wire is a male connector, the other end is female. FEATURES: Gold-plated teminals improve conductivity and prevent oxidation for longer lifespan. Heavier, 20-gauge wire handles higher current loads. INCLUDES: One 6" Long Servo Extension w/Hitec-S, JR, Airtronics-Z Style Connectors SPECS: Wire Gauge: 20 Wire Color Codes- JR- Hitec- Airtronics Z- Brown: Ground Black: Ground Black: Ground Red: Positive Red: Positive Red: Positive Orange: Signal Yellow: Signal Blue: Signal ir/jl