Great! Fast delivery and timely, surprise! OK Pack. I've tried other football-patch (another brand) that makes me feel good. These do not stain the sheets at all or socks, it is significant and they are cheaper. I appreciated the notice that says we can ask them to different parts of the body, I have experienced: in the back for a "small" back pain, muscle tension just (discs, vertebrae .. . in good condition) and on the forehead for an important visual fatigue; I see very bad, depending on the day and I have itchy eyes in the morning or not. After one night, it is efficient.