HOT OR COLD, ON THE GO: Enjoy a warm or cold meal no matter what time of year with the Navaris double-walled insulated food jar. Great for adults or kids lunches, with a handy top strap to carry or attach to a bag. BPA-FREE STAINLESS STEEL: The hot food container is made of BPA-free stainless steel metal with a cap that can be used as a cup or bowl. The leak-proof lid screws on tight with a pressure-release button for easy opening. PRODUCT DETAILS: Size S – 3.9 W x 3.9 D x 6.3 H (10cm x 10cm x 16 cm), Capacity – 15.2 oz (450ml); Size M – 3.9 W x 3.9 D x 7.6 H (10cm x 10cm x 19.2cm), Capacity – 22 oz (650ml). Made of stainless steel, PP, ABS. WIDE MOUTH: Fill, eat from, and clean the container with ease thanks to the wide opening on top. Food stays hot up to 9hrs, and cold up to 12hrs. CLEANING: The stainless steel food flask should be washed by hand. It is not suitable for the dishwasher or microwave.