Handi Heat Adhesive Body Warmers provide powerful pain relief through natural, soothing heat. Just peel back the adhesive layer and apply to the inside of clothing over the area of discomfort. Each Handi Heat warmer provides 10 hours of warmth through a natural exothermic reaction. Ideal for sore muscles, neck, back, shoulders, hips, etc. – Product Dimensions: 9.5 x 6.5 x 2.8 inches. Comes retail packaged/UPC coded and in a great counter display. Has an expiration date of 10/2013 but these are still good.