Hellomoto heating pad are ETL certificated, you can use them without worry It is made of gorgeous, soft and non-shedding fabric , built-in ultra-thin heating wire, it brings cozy and warm touch to skin. If you need to give a gift, this is definitely the best choice [SMOOTH, SOFT AND COMFORTABLE]: It is made of gorgeous, soft and non-falling short villus fabric. Built-in ultra-thin heating wire, it brings cozy and warm touch to skin. And it can also be machine washed to provide maximum convenience and comfort in your daily life.