Aquila Alabastro Classical Guitar String are a new Nylgut to emulate the tone of Gut strings without the Gut string short comings. Made in Italy. Until the mid-20th century all Treble guitar strings were made in gut, a material that had been used for thousand of years and that combines good promptness of attack and excellent performances . A fundamental aim of our research has therefore been to design a new synthetic product having the same acoustic properties as gut, but without its typical defects (high cost, short lifetime, high instability under moisture changes). Our New Nylgut® has precisely all these good qualities without all these defects. Its features include promptness of attack, excellent performances and a truly remarkable stability of intonation under moisture changes. The Alabastro Basses, wound with high quality- silver-plated copper, consist of a New Nylgut® multifilament core that ensures not only a high resistance to tensile stress but also a low absorption of both atmospheric humidity and sweat.