The product that was sent to me DOES NOT SHOW. From what I've seen the one they sent works great. I would not recommend using it on your knees. They emailed me to change my review to this one and since I didn't change the review to this (because it doesn't show the device they sent) they kept emailing me like it was the only thing what i could do in life would be slur your picture and get a free article. It is not true. But I'll probably try not to order their products now because of the allegations they've made. I hope they have a lot of success.
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