Total 66 feet:33FT Black and 33FT Red [NOTE:The red and black wires are separate wires,wound around the same spool.] 16 Gauge silicone wire - super flexible 252 strands of 0.08 mm Tinned copper wire - Highly efficient - Super low impedance for a highly efficient connection High Temperature Resistant Silicone Wire.Temp: -60 degree celsius +200 degree celsius Nominal Voltage 600VBear Current 12AConductor: High-purity oxygen-free Tinned Copper Widely used for Car,batteries,lamps,household appliances,electric heating appliances,model planes,model cars,model ships,meters,instruments,motor lead wire and digital fields