RBX unisex migraine relief mask black, one size fits most. This mask is designed to provide relief from migraines, headaches, and sinus pressure and stress. It can be used to numb pain or reduce inflammation. Use during sleep or just for relaxing. Use at home or on the go. Features: *Hot and cold therapy (freeze or microwave) *360-degrees full coverage for your forehead *One size fits most heads comfortably *Comfort: Soft comfortable msterial fits snugly *Travel friendly:compact and great for travel Cleaning: gently wipe with a moist towel and air dry