4 Gauge stranded 100% copper conductors for maximum cold cranking amps Tangle-free PVC insulation remains flexible to -40?F 25 ft. length for easier cable hookup Insulated clamps rated for 600 Amps 62" fixed hookup cables with eyelets 4 Gauge stranded 100% copper conductors for maximum cold cranking amps Tangle-free PVC insulation remains flexible to -40?F 25 ft. length for easier cable hookup Insulated clamps rated for 600 Amps 62" fixed hookup cables with eyelets .