Oxygen-free copper Cable Wire: The 18AWG wire has a high-quality PVC sheath that can be twisted and stretched at will. High precision Oxygen-free copper conducts electricity well. Compared with aluminum materials, it has lower resistance and higher conductivity. Preminum Red & Black Wire: The wire adopts 18AWG 50FT high-quality red and black double wire, high-quality PVC sheath, with good electrical conductivity, high mechanical strength, flame retardant, anti-aging, acid and alkali resistance, moisture resistance and other characteristics. Operating temperature range of -40°C-105°C, can work under strict conditions. Color-coded PVC Jacket：50ft 18 gauge electrical wire length is long enough your wiring projects. Easily peel and cut to any length you need. Wire comes wrapped around a hard plastic spool that makes dispensing convenient. The 2 colors jacket allow for easy polarity differentiation and are numbered for accuracy, reducing the risk of damage to the device due to incorrect polarity. Applications: Widely used for automotive or home wiring projects. Suitable for 300V DC electrical low voltage cable hookups such as speaker wire and other auto audio hookups. Or can be used for LED monochromatic light strips, electronic appliances and equipment, transformers, led lights, led splitter connections, etc. The wires are wound on a hard plastic spool and are easy to cut, they can be easily stripped and cut to any length as required. Package Includes: 18 gauge 50 Feet (50FT Red & 50FT Black) wire wound on a hard plastic spool.