For decades, La Bella has been supplying the worlds top ukulele players and luthiers with high-quality strings. From Soprano, Tenor, Baritone to Banjo Ukulele, La Bella Strings covers all your ukulele needs- Made with high quality nylon to ensure perfect intonation- String Gauges: Clear Nylon .023, .032, Aluminum wound on Nylon .036W, Clear Nylon .028- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness