This is a knee support. It's a new, unused item, but the box is a bit old due to long-term storage at home. I took it out of the bag for the photos! Unisex, free size Fits knees 33cm to 45cm Hand washable. The ceramic far-infrared rays are absorbed deep into the body and converted into thermal energy. It provides a secure fit, so it won't slip, and the design minimizes discomfort when bending the knee. My mother bought it for 4500 yen, but she had many other supports and never used this one. I'd like to offer it to those who experience knee pain, especially as the weather gets colder. Thank you. I will fold the box for shipping, so please understand. #KneeSupport #Support