I posted on a a social media platform how bad my knee was. I need a Knee replacement but I refuse to do it . A friend messaged me and said to give this a try. You can return in 60 days if it doesn’t work. I ordered it and I can’t believe it worked. My back also went out and I am using the Back Hip T shellz wrap for that area now. I had a MRI because doctor thought it was arthritis but it came back that I have fractures on both sacral areas and a torn hamstring. It’s working. Pain medications were not helping but this did . I would rather use these than get surgery or have to live on medications . Thank You!!! I called and they answered all my questions and then some. Fantastic company. Barbara from Florida