WIDE COMPATIBILITY- Dedicated to offering top-notch wiring solutions for a variety of projects, including car audio systems, home stereos, RV trailers, solar panel installations, and more. Please note, the gauge should be used appropriately, and TopstrongGear is not liable for improper use.Grade A- CCA Power Wire. SIMPLIFIES POLARITY IDENTIFICATION -Easy color coded power and ground wires, ensuring easy connection to the correct terminals during installation. This prevents potential damage to your audio equipment that could result from polarity errors. The differently colored jackets serve as a visual guide, facilitating easy polarity identification and safeguarding against potential damages caused by incorrect connections. SOFT-TOUCH PVC JACKET MAXIMIZING FLEXIBILITY AND DURABILITY- TopstrongGear true spec 4 gauge wires come with a rugged PVC jacket, offering both flexibility and durability for challenging placements. Its soft-touch design suits electrical and auto repair installations, providing indoor use versatility with built-in resilience to impacts and diverse conditions. Extreme Heat Tested. PREMIUM COPPER-CLAD ALUMINUM (CCA) WIRE CONTAINS 30% COPPER- Ensuring robust power transfer in a lightweight design. TopstrongGear CCA with 30% OFC wires maintain maximum flexibility while providing the strength needed for efficient power transfer at an affordable price point. For specific power demands, explore our range of premium Oxygen-Free Pure Copper (OFC) wiring alternatives. TURE 4 AWG GAUGE BLACK&RED POWER/GROUND WIRE-TopstrongGear 4 gauge 50-feet (15.24m) red & black power/ground wire meets American Wire Gauge(AWG) standard, offering true-to-gauge quality that guarantees the necessary power flow for your wiring projects. Thicker wire presents less resistance to current flow.