Thank you for viewing. This is the McDavid M425 Knee Stabilizer 5 knee support. I used it once after purchasing it, but it didn't fit, so I am selling it. It has been washed. There is no box. This model is recommended for those who want to prevent injuries during sports (basketball, volleyball, running, etc.) or who have concerns about their knees. Please consider this item if you understand that it is a used product. 【Product Details】 ・Brand: McDavid ・Product Name: M425 Knee Stabilizer 5 ・Size: M ・Color: Black ・For both left and right knees ・Support Level: Level 3 【Features】 ・Four elastic straps (cross straps) enhance knee stability. ・Built-in spring stays prevent lateral knee movement. ・Breathable back panel for comfortable wear.