Mizuno knee cushions. Used for six months by a 6th-grade boy in youth baseball. He started using them because he was worried about the strain on his knees, and he really liked them, saying "My knees are really comfortable!" I'm selling them because he doesn't play catcher in junior high school. The position of the knee cushions (the position of the calf and the cushion) has been adjusted and temporarily secured with white cotton thread. I've left them on as they made it easier to put them on, so please use them as a reference.