Aquila USA 19U Nylgut Tenor 8 String Ukulele String Set of people all around the world. The Lava Series strings maintain thesame identical mechanical and sound properties of Aquila's famous white-pearlSupernylgut ukulele strings. Enjoy it! Set / Tenor Ukulele 8-string Gg Cc EE AA- Key of C7 Strings made of SUPER NYLGUT, Colourgrey-black withmother-of-pearl shimmer1x low G-string (G8) Silver-plated woundAquilaLAVA SERIES for ukulele - A grey-black string coloured with a touch of mother-of-pearl inspired by volcanic rocks. Aquila's Lava Series, naturally inspired by volcano, an hawaiian symbol of new life, is the respectful homage to the hawaiian people who made the ukulele worldwide famous and share their happiness with thousand