EASY TO WORK WITH - This primary automotive wire set comes in red and black, making it easy to keep your circuits separate PVC PROTECTED - Flexible PVC insulates each 6 gauge wire, making them resistant to fire, abrasion, sunlight, and chemical or electrolytic corrosion VARIETY OF USES - Perfect primary wire for remote turn-ons, car radios, home theaters, robotics, model trains, door bells and more! HANDLES EXTREME HEAT - Rated to 105°C. 25 feet of wire per roll. Stranded copper clad aluminum. 0.2 mm dia/strand, 36 strands. Do not use for building/household 110 / 220 V AC wiring Integrity in Service: Iron Forge Cable, a U.S. veteran-owned business, stands behind its products. We're here to help resolve any issues that you may have.