The Retulp Big Mug Classic is a double walled, vacuum insulated stainless steel lunch box with screw top and a large opening, making it easy to fill and clean. Eating and drinking from a stainless steel bottle tastes better because there is no transfer of flavour between water and stainless steel. This makes the Retulp Big Mug ideal for carrying hot drinks for example, but also serves as a yoghurt mug, muesli mug or soup mug. The difference with the Big Mug Premium is that it comes in a gift box and has premium coating. Specifications: - Also suitable for coffee or tea - Double walled thermos flask - Yoghurt mug, Muesli mug, Soup mug - Lunchpod for adults - 500 ml - Keeps up to 6 hours warm and up to 8 hours cold - Available in 4 colours - Durable - BPA free and no toxins - Easy to clean - Standard coating - Supplied in standard packaging