This is a black knee support made by ZAMST, designed to reduce stress during running and exercise. I purchased it in 2022 and wore it over tights about three times during marathons. After that, my knee injury recovered, and I stored it without using it. There are no noticeable damages or stains, but please consider this item as a home-stored product. I have discarded the instruction manual that came with the purchase. Please refer to photos 8 through 11. Original price: 3,630 yen (tax included) - Brand: ZAMST - Color: Black - Type: Knee support - Size: S Thank you for viewing.