500ft. Spool of 18 gauge Primary Automotive Wire. Available in Black, Orange, Red, Blue, Green, Yellow, Brown and White. Wire is ROHS compliant. For wiring cars, trucks, trailers, boats, and other general low voltage electrical systems of 60 volts or less. Yellow PVC insulation. 16 strands of 30 gauge copper. Temperature rating up to 176°F (80°C). Made in the USA.