Hawaiian Koa all solid wood Kamaka 8-string ukulele Tenor size, so the sound has a spacious feel and is wonderful. I bought it, but I immediately purchased the Kamaka Herb Ohta model, so I kept this one without using it much. The neck has no warping. There are no cracks, chips, or any bulging or sinking of the top. Easy to play. Please enlarge the photos to check. Currently, this concert model HF-38 is 352,000 yen at Shimamura Music, etc. It's a pretty good deal. It has a deep history, is well-made, and its unique chorus-like resonance is its greatest charm. Be amazed by the overlapping sound that gives the illusion of playing multiple ukuleles. It's priced even lower on other sites.