This is a mug with a tea strainer from the Taiwanese manufacturer, Hsin Tung Yuan. Comes with a decorative box. The colorful floral pattern is called Hakka pattern, and it's a traditional Taiwanese design. I received this mug when I purchased a tea set from Hsin Tung Yuan. I kept all of them because they're cute, but they're taking up too much space, so I'm selling the ones I don't use.