KoAloha fluorocarbon string set for the soprano or concert size ukulele. If you love the strings that originally came with your KoAloha, then this is the perfect replacement set. 4 - G: 0.020”/0.52mm 3 - C: 0.029”/0.74mm 2 - E: 0.024”/0.62mm 1 - A: 0.018”/0.47mm