Monster 300 PowerFlex(TM) Power & Ground Cable- 4 Gauge Car Audio Power Cable 125ft or 250ft (Discontinued by Manufacturer) Specifically designed to ensure greater DC current transfer between car battery and cable Special battery terminals extend connections for easy power cable installation 24k gold contact and solid brass construction ensure maximum corrosion resistance and power transfer Includes optically clear, high impact polycarbonate cover for maximum durability Tapered design covers the unattractive lead post for maximum aesthetic appeal