This is a steel 3litres vacuum flask/Thermos. It is durable and reliable for keeping your tea/water hot for 24 hours. The Vacuum flask stopper Made From Food-grade silicon amine and great plastic particles, there is no any peculiar smell and toxins even after long -time high temperature. Seamless Steel With high quality materials and excellent polishing technique, steel content, each single unit is around. The shape is also fashion, and high-class, they guarantee a quality vacuum