1. PINK GLASS INNER – High-quality vacuum glass liner with excellent temperature retention to keep your beverages hot/cold for a longer time.2. VACUUM INSULATION – It blocks heat from transferring through the air (conduction). The glass vacuum insulation also features an iron layer with plastic and silica gel between the 2 layers. This multiple plating reflects heat (radiation), further minimizing the temperature change of your drink. Lastly, heat is blocked from escaping through the opening (convection) with a tightly closed lid.3. WIDE MOUTH, HIGH CAPACITY – Its large mouth opening makes filling and cleaning easy, it can even be used with ice for extra cold refreshment. Its outer body stays cool to the touch when filled with hot liquids and is condensation-free with cold beverages. It comes with a large capacity of 2.5 liters, ideal for family outings, or with friends.4. MULTIPLE USE – It is the preferred beverage equipment provider of social occasions, restaurants, hotels, and other commercial food service establishments. This vacuum flask is designed to meet the durability and performance needs of food service professionals. Popular choice because this commercial unique dispenser keeps beverages hot and fresh.