This is a twelve inch piece of "Slinky" wire wrap from GMK Supply. Slinkys are 1/8" diameter spiral wrap. Sensored brushless motors are revolutionizing electric racing with their speed and lack of required maintenance compared to brushed motors. One issue, though, is that the sensor wires are thin and fragile. To help protect them, use a "Slinky" spiral wrap around the sensor cable and organize and protect those small, expensive wires. 12" length to fit any length sensor cable.