Aquila strings are one of the most popular brands of ukulele strings around, if not the most popular.
They are made in Italy of their own, special Nylgut material. Nylgut is a synthetic material that is intended to combine the best qualities of nylon and gut strings (hence the name). The strings are easy to play and have a warm tone to them.
This set for Guitalele will bring a beautiful, melodic tone to your instrument.