The Heat Keeper Teapot is rustic and timeless. This cast iron teapot is designed to keep your tea warm for a long time, allowing you to keep the kettle on the table without having to travel to reheat it.. Made of cast iron and 18/10 Stainless Steel Filter. BPA free. Enameled interior and folding handle. Includes stainless steel filter. Holds 20 oz. Dimensions: 6.3" x 3.54" h. Trivets sold separately.