Aquila Lava Series Concert Ukulele String Set Low G Tuning f 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 / Concert Ukulele g c' e' a' - Low-G Tuning, key of CG-string is tuned 1 octave lower, andwoundMade of SUPER NYLGUTColour:grey-black withmother-of-pearl shimmerAquila LAVA 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 o