KIDS AND ADULT LUNCH BOX – Recommended mimimum age 2+ suitable for all ages, our thermal lunch box is exactly what you need to enjoy lunch on the go. It is robust, generous in size and lightweight so you can enjoy your favorite meal, wherever you areSUPERIOR THERMAL TECHNOLOGY – the wide bowl shaped design features an 18/8 stainless steel interior which will keep your food warm (not hot) for up to 4 hours and cold for up to 6 hours. There is no need to microwave your food or cool it in the fridge before eatingNEW HEAT RELEASE VALVE – our bestselling insulated lunch box design has been upgraded and now features a vacuum knob heat release valve. Simply lift the easy to access latch so heat can escape to ensure you enjoy your meal at just the right temperature. Kids love it!EASY FASTENING LID – there’s nothing worse than a leaky hot lunch box which is why we have designed ours to be completely leak proof. The 4 easy to access clips secure the lid on tight to lock in the temperature and prevent leaks and spills. It really is the best way to enjoy your favorite meal on the go, without any mess You can even stand the box on the lid when eatingLIGHTWEIGHT FOR YOUR CONVENIENCE – perfect for adults to carry to the office or for kids to take to school or college. The sleek design looks professional and keeps your food warm until lunch time. The outside of the lunch box will always feel cool, even when there is warm food inside