Although our ukes already come with excellent strings, if there is something special you are after we'll be very happy to chase down a set for you. All Pono and Ko'olau ukuleles come with Ko'olau's Alohi strings, which are very similar to D'addario's nylgut strings. For replacement sets we recommend D'addario, for lower tension fluorocarbon strings we recommend Worth, and for laminate instruments or those wanting extra punch, Aquila strings.