A friend of Harney & Sons, Masa, made this new ceramic mug for them in classic white, featuring Harney & Sons logo in grey. It's extremely sturdy and holds a generous 15 oz of tea. This version comes with a ceramic lid and a reusable, fine gauge stainless steel infuser. Mug only is microwave safe. Remove infuser prior to heating. Masa always makes stylish yet functional pieces; we know you will love it and enjoy many years of use.