Unique product, great for gifts, ideal for boutiques, spas, yoga studios, wellness clinics and small retail shops! Used for sore muscles, cramps, migraines, relaxation, arthritis relief, chemo patients, upset tummy, toothaches, and many more uses... Attached label includes description and easy to use directions. Made with natural ingredients: Rice, Flaxseed and 100% Cotton material. Heat in the microwave for a heating pad or cool in the freezer and use as a cold pack! Once the heating pad is warmed in the microwave, it will stay warm for approximately 30 minutes. Our packs can also be used as a cold pack by placing in the freezer for several hours. Select your size and unscented or lavender when placing your order. The lavender heat packs are made with lavender essential oil. All of our items are hand made in the USA! NOTE: We are not medical professionals and we suggest that you always consult with your physician before treating or managing any kind of pain or injury.