D'Addario's lightest gauge of acoustic strings, EJ10's are ideal for beginners or players who prefer a softer tone and easy bending. Extra light gauging for playing ease. Extra-bright tone mixed with deep and projecting bottom end. Environmentally friendly, corrosion resistant packaging for strings that are always fresh. Made in the U.S.A. for the highest quality and performance. String Gauges: Plain Steel 0.01, 0.014, Bronze Wound 0.023, 0.03, 0.039, 0.047.