Double wall stainless steel vacuum construction: The thermos vacuum construction keeps the temperature of your drink firmly colder and the temperature is maintained. This is a great feature that prevents your tabletop from getting wet due to condensation. (Compatible with 4 Combined Bottles) The size is compatible with 4 bottles (24.3 fl oz (720 ml)) that are commonly sold in many cases and can be easily cooled in the refrigerator. No electricity is required, and can be used on a tabletop by inserting each cold jar. It can also be used with 3.3 gal (1 L) plastic bottles, so it can be used outside of the night. (Simple and not decorated) The silver pattern is made of stainless steel so it is easy to put in your living room or dining room. Great for Events: Perfect for home parties and dining parties with large groups. As a Gift: This product can be used not only for cold liquor, but also for wine coolers and water bottled drinks, making it the perfect gift for birthdays and anniversaries.