The sodastream® Fizz & Go Easy Mix Carbonating Bottle is perfect for enjoying your favorite fizzy beverage at home or on the go. The 24oz bottle is constructed with double wall stainless steel , it will keep your beverage cold and bubbly for up to 6 hours. A convenient carrying handle makes it easy to carry with you wherever you go, and the bottle is designed to fit most car cupholders. Dishwasher Safe.