XL Chromes are a flat wound electric bass string, which provide a mellower tone than round wound strings. Chromes stainless steel flattened ribbon wrap wire is precisely polished for unparalleled smoothness and a dark, yet warm tone. Like all D’Addario bass strings, XL Chromes are made with our proprietary Hex-Core, ensuring perfect intonation, consistent feel, and reliable durability. | Chromes sets have a code on the recyclable VCI bag, which you can register to earn Players Circle points. D’Addario bass guitar strings are made in the USA—drawn to our exacting specifications at our New York production facility. |