80/20 Bronze strings are wound on a hexagonally shaped, high carbon steel core that delivers a long life span and excellent intonation. A popular choice for recording, the 80/20 Bronze strings provide a full and crisp tone. The result is a long lasting, bright sounding tone, that maintains it's intonation. D'Addario 80/20 Bronze strings also employ a round wound construction which delivers the traditional, textured feel most players are familiar and comfortable with.