D'Addario J71 Pro-Arte Ukulele Strings, Tenor Optimized for Tenor Ukuleles tuned to standard GCEA tuning Nylons made from the renowned D'Addario Pro-Arte series with highly accurate, laser sorted treble strings Inspired and guided by DAddario ukulele artist Jake Shimabukuro Tenor Ukulele, Pro-Arte Clear Nylon, Non-Ball End Made in the U.S.A. for the highest quality and performance