5 pcs D'Addario PL010 Guitar Single String Plain Steel 010 Acoustic Guitar 1st String D'Addario plain steel guitar strings are acclaimed worldwide for their superb, long-lasting tone. They are equally suitable for both electric and acoustic guitar. D'Addario offers a full range of electric guitar singles for all your replacement or customization needs. • .010 plain steel string for acoustic or electric guitar • Superb, long-lasting tone • Perfect as a replacement string or for creating customized sets • Made in the U.S.A. for the highest quality and performance PLS INBOX MSG US IF YOU NEED OTHER GAUGE / SIZE.