3M Hot / Cold Pack, 4 x 10 Inch-Hot / Cold Pack 3M General Purpose One Size Fits Most 4 X 10 Inch Plastic / Gel Reusable

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3M's cold/hot pack eases muscle cramps and lessens pain Each hot and cold therapy pack is non-toxic and safe to use for all ages The pack is microwave and freezer safe for easier h eating and cooling For maximum benefit, the gel pack is designed to retain the desired temperature for a long period of use The leak-resistant pack will leave no mess after use Show more