Aquila's standard tenor ukulele set, code 10U, in regular high-G tuning (G C E A) with all four strings plain and none wound. The strings are New Nylgut, the synthetic Aquila developed to copy the warm, sweet sound of gut while staying in tune through changes in humidity and sweat, and they are made in Italy. Give them some settling time after fitting, and like gut they want smooth nut and bridge edges, so tidy up a rough slot first. Four-string tenor set.