Vantelin Knee Support (Size M). I realized after purchase that it was not suitable for my condition, so it is unused and unopened. I have used the same product before, and it provides good support while allowing for easy movement, making it recommended for reducing stress on the knees during daily life and sports. • Size: M (Knee circumference 34-37cm) • For both left and right knees • Condition: Unused and unopened (stored at home) • Purchase date: October 2025