HYDRO Marine Grade OFC Ground Wire 4 GA - 50' RollThe ultimate in marine wiring by DS18. Setting new standards and value in the industry.Features:100% Oxygen Free Cable (OFC)Ultra FlexHigh PerformanceMarine Grade - Tinned CopperSize - 4 GaugeLength - 50' RollWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.