Unbreakable stainless steel bottle warming flask - the easy solution to feeding when out and about. Simply pour freshly boiled water into the flask and seal the lid securely. When a feed is required, pour the hot water into the oversleeve for bottle warming or straight into a feeding bottle and mix in milk powder for instant feeds on the go. Volume 400ml. Oversleeve. Rainforest design. 5 to 10 minute warming time. Bottle not included.