D'Addario NYXL Plain Steel Guitar Strings, .009, 2 singles per pack D'Addario's exclusive .009 gauge New York manufactured, high carbon steel alloy for unprecedented strength - play fearlessly Enhanced tuning stability Perfect as a replacement string or for creating customized sets Made in the U.S.A. for the highest quality and performance <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.