: Keeps cold up to 72 hours and hot up to 48 hours. Double-wall vacuum insulation, high-quality insulated layer and narrow mouth help to hold the desired temperature. The outer part of the thermos has a copper top coating to keep coffee and tea hot, while iced water is kept cold: 18/8 high grade rust-free stainless steel metal bottle. BPA-free, food-grade steel, food-grade plastic and silicone. Stopper has extra metal layer to prevent odor absorption. Your drink will never touch any plastic: External cap doubles as a cup for your beverage. Extremely easy to open and close ergonomic shape of the lid helps to avoid any accidents or spills: Dishwasher safe. Easy to clean. Durable and shatterproof water bottle: All Bobber products come with a 5-year manufacturer warranty. Stylish award-winning design and exceptional quality make Bobber flask a good accessory for the camping and a perfect gift for Birthday, Holidays Product Description Does it really keeps beverages hot for 48 hours? Yes, it does. We have done over 100 tests to ensure our Flask keeps liquids hot for up to 48 hours when filled with boiling water. According to our measurements, after 2 days the temperature of your drink will be 127°F if the thermos is still full. How to keep the temperature consistent? The more content placed in the thermos, the longer the original temperature will last. Pro-tip: for best heat retention, preheat flask with boiling water before pouring hot drink. For cold, pre-chill with iced water before pouring cold drink. Can a bobber be washed in the dishwasher? Yes. Avoid using alkaline dishwasher products as these can damage the product. What is it made of? Our thermoses are made of high-quality stainless steel (ANSI 304 2B - 18% chromium and 8% nickel) designed for corrosion resistance and safe use as a food industry product; food-grade plastic and food-grade silicone. All products are also BPA-free. How much does it weight? What are the dimensions? Weight: 1.3 lb. Width: 3.70''. Height: 11.02''. Mouth diameter: 1.34''. Cup volume: 4.4 oz. Explore more bobber products Heat retention Keeps hot up to 48 hours Keeps hot up to 24 hours Keeps hot up to 8 hours Keeps hot up to 6 hours Keeps hot up to 14 hours Keeps hot up to 8 hours — Cold retention Keeps cold up to 72 hours Keeps cold up to 36 hours Keeps cold up to 16 hours Keeps cold up to 12 hours Keeps hot up to 20 hours Keeps cold up to 16 hours — Mouth diameter 1.34'' 1.34'' 3.31'' 3.31'' 3.33'' 3.31'' 2.2'' Fits into cupholder — — — Metal-plated cap / stopper — — — — Extra wide mouth — — — Dishwasher safe Track Page Views WithAuctiva's Counter