This high-performance cabling specifically for RC use. Perfect for connecting packs and motors. Each set include one red and one black wire in the length you specify. 12 AWG silicone wire - super flexible 680 strands Tinned copper wire, the copper strands are tinned, protecting them from corrosion and making it easier to solder. They are constructed with premium silicone rubber insulation. High temperature resistance 200 degree C, Low temperature resistance, when in extreme cold -60 degree C. Rated Voltage: 600 volts. 10 AWG silicone wire - super flexible 1050 strands Tinned copper wire, the copper strands are tinned, protecting them from corrosion and making it easier to solder. They are constructed with premium silicone rubber insulation. High temperature resistance 200 degree C, Low temperature resistance, when in extreme cold -60 degree C. Rated Voltage: 600 volts. These wires are super flexible due to the many strands of wire, but the larger wire is more difficult to position and solder as well as a small weight penalty. Price is for two pieces of wire for the indicated size (one red and one black). I recommend using the 12ga wires for all off road, on road, and oval classes, up through 5.0 2 pole and all 540 sized 4 pole motors below 6100KV. The 10ga wire is stiffer and heavier, use with low turn motors. Even the low power classes, such as 17.5, can benefit using 12ga wire. When racing 1/8 scale 4 pole motors (42mm OD), 12ga should work great for off road buggies with the lower KV motors (1950KV and lower). 10ga may be helpful for long duration races.