Rub-A535 Back Pain Relieving Pro Heat Wraps soothe aches and pains in your back and hips for up to 8 hours. Each non-medicated wrap uses deep-penetrating, therapeutic heat to help relieve back and hip aches associated with overexertion, strains, and sprains. Simply apply the wrap to your upper, mid or lower back for relief from soreness. Easily apply Rub-A535 whenever pain strikes; the flexible wraps are comfortable, odour-free and can be worn discreetly while you work, travel or sleep. RUB-A535 has been helping Canadians manage their pain for over 90 years. Rub-A535 Back Pain Relieving Ice to Heat Patches soothe your back and hips for up to 8 hours Deep-penetrating formula goes on cool to relieve pain then warms to soothe muscles Relieves back and hip pain due to overexertion, strains, and sprains Large patches easily cover your upper, mid or lower back Patches are greaseless and flexible for added comfort Ingredients: Iron Powder, water, charcoal, salt, vermiculite Warning: This product can cause burns. Check skin frequently during use. If you find irritation or burn, remove product immediately. 55 YEARS OR OLDER: Your risk of burning increases as you age. If you are 55 years of age or older, wear heat wraps over a layer of clothing, not directly against your skin. Do not wear while sleeping. Ask a physician before use if you have nerve damage or a skin condition, diabetes, poor circulation or heart disease, rheumatoid arthritis or are pregnant. Do not consume. Keep out of reach of children.