This is a new, unopened general medical device arm sleeve (size S, black) purchased at a lymphedema clinic. It has a compression level of M20 (20-33Pa). Please refer to the 7th photo for specific size details. The manufacturer is Medix Co., Ltd. in Tokushima, and the brand is Medical Support Grow. It is made in Japan. The retail price is 7,150 yen (tax included) per sleeve. There are three of the same item available, so multiple purchases are possible.