350ML 777 Vacuum Flask

350ml 777 stainless steel hot and cold vacuum flask is strong, durable, and the best for you. Made of high-quality stainless steel and double-wall insulation,it keeps your liquids hot or cold fresh for 12-24 hours.  The flask has a light, portable, and compact design suitable for daily use either to school, work, or traveling.The leak-proof lid cover is well designed as a cup with stainless steel, strong, and easy to open and close,it is easy to clean, the outer material is scratch-resistant and rust-free.With its extra-wide neck, this vacuum flask is also great for a refreshingly cool drink on a sweltering summer day. You can fill it with plenty of ice cubes to keep your drink chilled.