TQ-Racing 13 Gauge wire is constructed with 1,296 strands of bare copper and thin wall silicone. This wire is only 3.5 mm ODâ€¦as thin as most 14 gauge wire and delivers more power than most coated 12AWG wires! The compact 13 gauge conductor fits easily into ESC's and BL solder terminals. It's thin and super flexible to make quick work out of neatly wiring any car. This is a special NEW kit is for BL sytems, containing 5 individual lengths, 3x12" 16G motor wires and 2x6" 13G battery wires all in the "standard" BL wiring colours - black, blue, red, yellow and orange.