Double wall stainless steel and bamboo insulating vacuum flask. The bottle includes a LED touch thermometer incorporated in the lid, so you never burn your lips and tongue on the hot liquid inside. It also has a tea infuser inside, so you can make a fresh flask of tea with your favourite flavour. 1 replaceable CR 2450 battery included. With a capacity of 480 ml you can stay hydrated throughout the day. Leak free. Bamboo is a natural product, there may be slight variations in colour and size per item, which can affect the final decoration outcome.