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 20 meters of wire, providing ample length for a wide range of projects. The wire’s ultra-thin, 32-gauge diameter ensures that it can be wound compactly within tight spaces, while still delivering optimal performance.