A traditional symbol of wisdom and adaptability, the dragonfly appears in rich detail on two sides of the BergHOFF .85 qt. Cast Iron Teapot with Dragonfly Design - Blue. The insect is shown against a ribbed texture that makes is stand out among your tea setting. Not only is this cast iron teapot pleasing to the eye, but it's also able to improve brewing and insulate your tea with its cast iron construction. Durable enamel lining protects the metal from the corrosive properties of the acids in tea. Completing the design is a loose leaf tea infusion basket constructed out of 18/10 stainless steel fine mesh.