New, Unopened This knee supporter utilizes patented technology. The printed mineral powder emits terahertz waves and far-infrared rays, promoting blood circulation, stabilizing the center of gravity, and supporting walking. - Brand: RKL - Product Name: SMOOTH MOVE SUPPORT - Size: Free Size (30-40cm) - Features: Technology to support joints and walking Retail Price: ¥17,900 Please feel free to ask any questions. Please read the profile before purchasing.