Tourmaline Waist Brace SupportWith built in magnet, this lower back support features self heating, which can help to promote blood circulation, relieve muscle fatigue, enhance metabolism, improve weakness and adjust the skin color, etc. Strong hook and loop closure design belt can paste firmly, easy and comfortable for wearing; and the compression is adjustable; Crossed elastic reinforcing bands can fix the waist support in place instead of slipping down. It can effectively