The voltarol thermal patch effectively and naturally provides pain relief and deep muscle relaxation for muscle pain, back, neck and shoulder pain. The thermal patches are applied directly to the skin, on the site of your muscular pain. You feel the heat and relief instantly. Each patch provides 10 hours of penetrating heat that works to unwind tight, aching muscles and increases circulation to help soothe pain away. P p features p p bull relieve muscular pain br bull relaxes muscles br bull uses heat therapy br bull each patch last up to 10 hours p p pack contains p p bull 4 x voltarol thermal heat patches p p thin, discrete and designed to work on your body where it hurts, the patch helps you to get active again soon and take your mind away from pain. P