This comforting body wrap features essential oil from lavender, lemon, and orange. Used to sooth tension on the back, neck, shoulders, legs, and arms. For heat therapy: Place hug in clean, microwave and heat in one-minute intervals until desired warmth is achieved. Hug should feel warm, not hot, to the touch. Always test temperature before using. Never leave unattended in microwave. To wash: Remove the hug cover and machine wash in cold water. Do not wash or get herb pack wet. Contents of herb pack include natural vegetable cellulose, rice, lavender pedals, chamomile and rosemary. The outer fabric is 100% recyclable polyester.