Happy Rags Tummy & Eye Pillows are made to use either hot or cold. They are filled with French lavender, flax seeds, lentils and rice which help to hold heat and cold and to contribute weight for pressure. Freeze for 1 hour and rest over eyes or forehead to help soothe headaches. You can also heat in the microwave to help ease menstrual cramps and sore muscles. These are locally made and have the cutest patterns!