D'Addario's range of flatwound strings, deliver a balance of smooth feel, warm/mellow tone and optimal tension, ideal for traditional jazz, rockabilly twang, R&B and some pop/rock styles. D'Addario Chromes are wound with flattened stainless steel ribbon wire which is polished to an incredibly smooth surface. Chromes deliver a distinctive damped but tone-rich sound that only flatwounds can produce. D'Addario Chromes are the world's most popular flatwound strings.