All solid mahogany! I believe this ukulele has a beautiful, rich, deep blue color that is even more stunning than in the photos, with a glossy finish that makes it sparkle and leaves a lasting impression! The strings have been replaced with Low-G strings, but no modifications have been made to the ukulele body, so please rest assured! By the way, the Low-G string is the 4th string for a classical guitar. Included are a soft case, a clip-on tuner, a faux leather pick for ukulele, and as a bonus, two brand new, unused replacement batteries for the tuner. I bought this hoping to try a tenor size, but the concert size was still easier for me to play due to the size of my hands, so it mostly just sat as room decor. I've decided to sell it now as part of a room cleaning and redecoration. The string height was easy to play. The slotted headstock is cool, and I think it's easy to tune and change strings! Reference price: New on Amazon for 18,500 yen. [As of September 11, 2024] Thank you for your consideration.