Product DescriptionDAddario is the worlds largest manufacturer of strings for musical instruments, having a reputation as a manufacturer with unsurpassed quality The innovative packaging developed by DAddario does not harm the environment, protects the strings from contamination and corrosion All DAddario strings are manufactured in the USA on unique proprietary equipment, under the control of a proprietary digital quality systemFrom the ManufacturerEJ36s are ideal for players who prefer a softer tone and easy playability Designed for all makes and models of 12-string acoustic guitars8020 Bronze, commonly referred to as brass, is the original acoustic string alloy selected by John DAddario Sr and John DAngelico in the 1930s 8020 Bronze strings are popular for recording due to their crisp, deep and projecting tone and appeal to many traditionalists and vintage enthusiasts for their historical significance All DAddario acoustic strings are wound on a hexagonally shaped, high carbon steel core, resulting in long lasting, bright sounding tone with excellent intonationDAddario, the worlds largest manufacturer of musical instrument strings, is known as The Players choice with a reputation for unsurpassed quality and consistency DAddarios innovative packaging reduces waste and provides protection from corrosion All DAddario strings are manufactured in the USA using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set