I bought this from Norbu after a month at looking at every gaiwan possible. It’s everything I wanted in a gaiwan. Light weight, glass, and around 4 oz. It’s actually 5.07 oz. It came with a sample of their oolong tea, which was an extra perk. I use it weekly. It was shipped fast, too! Plus, it was the best price, including shipping! I just hope I never drop it! :)