They definitely break in over time. Comfort:At first, it was okay. aj 12 cny Use duct tape to secure the window while you are positioning it. Do rate the quality very highly. aj 12 cny The ability to heat them really helps with the arthritis and lets me relax. aj 12 cny My main issue is they exstreemly tight around the back of the knee and upper part of the sock. They are built just as good as a pair I bought once for $50. Great units! aj 12 cny Installation screws not included. After 2 days I literally lost 2 inches off my waist and Im not dieting just by wearing it and working out.
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