Magnet wire is solid core copper wiring with an “enamel” coating. Magnet wire can be for making custom coils, motors, generators, inductors, electromagnets, or transformers. This particular spool offers 10 meters of wire, providing ample length for a wide range of projects. The conductor measures ~1.0 mm diameter, making its closest “normal” AWG size 18-gauge. This larger diameter allows for use in applications that require higher current.