The copper resists corrosion and helps to extend the life of the marine cable.
Features: Easy to strip, bend, and route Excellent flexibility with the durable properties of PVC Technical Specifications: Conductor - Annealed fine stranded tinned copper ASTM B172 Class K Insulation -20 °C to 105 °C Flexible, Color Coded PVC Temperature Rating - 105 °C Dry, 75 °C Wet, 60 °C Oil Voltage Rating - 600V Resistant to - Acid, Alkali, Abrasion, Flame, Gasoline, Oil, and Moisture *Sold as an Individual Then, the cable is insulated with a durable and flexible PVC jacket. This marine battery cable is made from Type III tinned copper.Pacer Red 3/0 AWG Battery Cable, 25' These things all come together to make the highest quality marine cable available.