Rumi Hot & Cold Therapy Pillow is flexible and molds to the neck or area of the body in need of pain relief. Filled with wheat grains, it weighs a comfortable which provides a light-weighted pressure for the targeted area without being too heavy. Its a hot and cold effect that soothes neck pain, headache and mind. This microwavable neck heating pad takes 1-2 minutes to completely heat up to a comfortable temperature. , Once warm you will find that the temperature is evenly spread out across the entire length of the Rumi warming neck pillow and that it delivers a moist heat. It also has the ability to penetrate deeply to the center of the painful and irritated muscle. This heat impact is effective for relieving pain in sore neck, for whiplash, arthritis, sore muscles or cramps. For cold affect freeze it to use as a plush, reusable cold pack to reduce swelling, soothe sprains, and tissue injuries. 2-in-1 pain relief.