Aquila kids educational ukulele strings 138U Set. Aquila's continuous efforts are directed not only to preserving the environment but also towards society, especially the musical education of the young. Music indeed shapes and brings together a positive and responsible humanity It has been a natural step for Aquila to create a dedicated set of ukulele strings under the name of �kids�. This new set of strings is made for educational purposes. Colours are notes inspired by an educational method in use around the world since the 1960s. The new set �kids� is made of NEW NYLGUT, produced in Italy on Aquila's own extruding machines. Thanks to a proper balance of string gauges it fits Soprano, Concert and Tenor ukulele sizes. SINGLE PACKAGED SET