It's a comfortable stretchable ice pack eye mask for puffy eyes. Easy to use and reuse. Simply freeze in the included zip bag for 2 hours between uses. It's thick gel and dark color also make it the perfect relief for headaches and migraines. This natural remedy easy-to-use cold pack is safe for daily use and ready in the freezer whenever a headache or migraine comes on. The compression mask hat effectively supports & compresses the face, eye and head to target all areas that cause pain.