This is a long bag for a medium-neck shamisen or a thin-neck shamisen. It was made from unsewn haori fabric (coat fabric). It's a thick fabric. The base color is reddish-brown shibori dyeing. It has a wave pattern. The pattern is different on the front and back, making it a unique long bag. As shown in image 9, the length was just barely enough, so the woven-out part of the fabric is used for the gusset. I think it's not noticeable because it's on the bottom. It has been stored for a long time, so it has a slightly retro feel, but it's in a clean condition with no stains. The lining is unused hakke-ji (lining fabric) in a gentle milky orange color. The front and back are silk. It is shown on a thin-neck shamisen. You can tie it with a string without it being tight at the top. This is a handmade item made by an amateur as a hobby, so thank you for your understanding.