Made of "Sawara", a famous wood produced in Kiso, Shinshu, which is the best material for bath products. This is a gem made using a woodworking technique that has been used since the Edo period. The inside and outside of the bucket are finished with a plane to give a beautiful finish to the surface of the wood. Just one of these wooden bathtubs in your bathtub will create a peaceful space. It was made using a woodworking technique that has been used since the Edo period. It is a gem finished by inlaid woodworking technique without using nails. Japanese people have wooden baths, and it is said that the moment you sink into the bathtub is the most blissful moment of your life. The feel of the wood, the emotional warmth, the sound, and the fragrance. Yamaichi uses Kiso cypress and sawara (sawara) as materials. Hinoki cypress contains a lot of essential oil and has a unique aroma. Sawara is the best material for making tubs. Its water resistance is superior to that of cypress.