Mitsuori neck shamisen is a shamisen. Almost high-grade shamisens are mitsuori neck. This case is an only for Tsugaru shamisen with mitsuori neck. It's light enough to be worn over the shoulder or on the back (with straps). The core styrofoam shape provides strength close to a hard case. It’s very convenient for traveling! If you have a mitsuori Shamisen, you must have this!