Product DescriptionXL Chromes are our warmest, mellowest electric guitar strings. Beloved by jazz guitarists, as well as blues legends like Gary Clark Jr., these flat wound strings provide the smoothest feel and warmest tone, while allowing movement across the fretboard with no finger noise. Made with a high carbon steel core, Chromes’ stainless steel flattened ribbon wire is expertly wound onto a series of interlocking under-windings, then precisely polished for unparalleled smoothness and a sound which blends beautifully into any mix. This 12-52 Light set adds some additional tension over Jazz and Extra Light flat wound gauges, for a slightly fuller tone.From the ManufacturerECG25, one of D'Addario's best selling flatwound sets, delivers a smooth feel, warm/mellow tone and tighter tension, ideal for traditional jazz playing.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.D'Addario, the world's largest manufacturer of musical instrument strings, is known as The Players Choice with a reputation for unsurpassed quality and consistency. D'Addario's innovative packaging reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.