Thank you for viewing. This is a Phiten knee support that I used when I was playing volleyball. Soft, metal-like supports are inserted on both sides to reduce the strain on the knee. Compared to items A and B, which are listed separately, the Velcro and the side supports are softer and looser. Although it's an older model and the shape is different from the latest ones, it's recommended for those who want to try Phiten supports. I have a total of three items for sale, but A and B were purchased at the same time, and C was purchased before them, so there are some differences. Please purchase with the understanding that this is a used item. No returns or exchanges, please. - Size: L - Color: Black - Material: Stretch material - Purpose: Knee support Sports Basketball Volleyball Badminton Handball Supporter