The baritone ukulele is the largest of the four ukulele sizes. It produces a lower tone: a warmer, darker, and richer sound. It has 4 strings which are usually tuned D-G-B-E like the highest/top strings on common guitar tuning. It is 30.5 inches long, has a satin finish and chrome die-cast tuners.
My daughter bought this uke for me when I lost most of the use of two fingers on my left hand and could no longer play my guitar. It was easy to make the transition since it is tuned the same. I've now lost the use of more fingers and so am hoping to find a good home for it. I don't know what my daughter paid for this one, but I see new ones on the web for $140 to $180.
The KA-B is rated "Best Overall" by Ukulele World zine: https://www.ukuleleworld.com/best-baritone-ukulele/