The Stay Warm Thermotherapy Cherry Stone Warming and Cooling Neck Pillow is a hot or cold pack and cervical pillow designed for use by individuals with arthritis or neck, shoulder, or upper back pain. This specially shaped pillow with cherry stone filling wraps around the neck to give localized comfort. After three minutes in a microwave or 15 minutes in a conventional oven, the pillow provides long lasting, penetrating heat, which is quickly conducted to the area of discomfort as the pillow molds to the contours of the body. The warm cherry stones have a pleasant natural aroma, and because the pillow is washable, aromatherapy oils can be applied direct to the pouch. Used straight from the freezer as a cold compress, the pillow keeps the neck and body cool.