The cast iron teapot has a glazed interior and a black matte finish on the outside. Made by the Nanbu Iron Studio in Japan. This is a beautiful addition to any teapot collection or a fantastic gift for the tea enthusiast. The pattern and shape of the teapot are typical of Japanese teapots. The cast iron pot can be used to boil water then add the tea in the infuser. No additional kettle needed. This teapot hold 18oz. of tea and has a removable stainless steel infuser basket. Makes a beautiful gift.