The Stay Warm Cherry Stone Thermal Pillow is a hot or cold pack designed for use by individuals with arthritis or pain. This therapeutic thermal pillow is filled with cherry stones, packed in a one-hundred-percent cotton pouch. The pillow can be heated in a microwave for 3 minutes or in a conventional oven for 15 minutes for a long lasting, slightly moist penetrating heat. The pillow molds to the user's body and caresses away aches and pains, while the natural moisture in the stones gives off a smell of cherries when hot. Placed in the freezer in a plastic bag for 45 minutes, the pillow becomes a cold compress for sprains and bumps. Machine washable, air dry. COLOR: Red.