☆ I am also selling this on other sites, so please comment before purchasing. I bought this for a trip, but it didn't arrive in time, so I didn't use it. It is brand new and unused. A food-grade EVA material solution that reduces snoring and supports comfortable sleep. - Product Name: Stop Snoring Solution - Function: Solution to reduce snoring - How to use: Warm it up with water before use - Material: Food-grade EVA material - Features: Design with a cooling effect Thank you for looking.