2 in 1 / Set Car Double Binding Round Gold Plate Push Spring Loaded Jacks Speaker Box

1. Rear connections use quick disconnect connectors. Positive (Red) and negative (Black) indicators to ensure proper wiring. 2. Made of ABS+zinc alloy gold-plated material, strong and durable, long service life 3. Easy installation, play and plug. 4. How to use: push 5. Exterior diameter: 75mm