Acoustic Guitar Strings Set - Extra Light 10 - 47 • Coated Phosphor Bronze Description D'Addario's lightest gauge of acoustic strings, EXP15s are ideal for beginners or players who prefer a softer tone and easy bending. D'Addario EXPs are the most natural-sounding, longest-lasting coated strings available. EXP Coated Technology starts with the highest quality wrap wire materials, precision drawn and micro-coated on our advanced proprietary machinery. Strings are then wound normally, delivering tone and feel identical to D'Addario's world renowned acoustic strings, with a minimum of 4 times more life. You won't believe they are coated! • D'Addario's lightest gauge acoustic guitar string set, known for its superb, long-lasting tone and playing ease • EXP Coated phosphor bronze for warm, bright, well balanced acoustic tone and 4 times more life • 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 .010, .014, Phosphor Bronze Wound .023, .030, .039, .047 Specification E:PL010 - 0.010" B:PL014 - 0.014" G:EXPPB023 - 0.023" D:EXPPB030 - 0.030" A:EXPPB039 - 0.039" E:EXPPB047 - 0.047"