Brown ukulele made of Hawaiian koa. Aria AU-1C/K model. There are shadows due to the lighting, but the actual ukulele is very beautiful without shadows (especially the third photo; it's a shadow from the smartphone). - Brand: Aria - Model: AU-1C/K Concert size - Back material: Koa-style The strings have been replaced with Orcas. The blue on the fingerboard is a fingerboard sticker purchased from a musical instrument store, not an inlay. Strap pins were installed at a musical instrument store. It has a gorgeous and very good sound. Even the ukulele shop staff who strung the strings were surprised. This was given to me when I first started playing the ukulele. It has a great sound, so I hate to part with it, but I have too many ukuleles and storage space is becoming limited. If you are interested, please consider it.