Ja cast iron is designed for beauty as well as function.Thesehandcrafted works of art are manufactured using a rare sand casting process. following a centuries old Japanese tradition. Up to 40 individual intensive production steps turn each and every product into a one of a kind piece. The Hani design holds 40 fl. oz.. includes a stainless steel infuser and has a beautiful hand painted exterior of blue and silver. Hand wash only. dry exterior well after washing.