This is a Starbucks commemorative mug in collaboration with Taiwanese semiconductor manufacturer TSMC. I received it from an acquaintance and have been displaying it indoors. It is a limited edition item only available for purchase by TSMC employees. The navy-purple gradient and silver metallic geometric pattern (semiconductor circuit design) make for a very cool mug. It's a large mug with a capacity of 473ml. It's recommended for practical use as tableware, interior decoration, or for display. I have not used it as tableware. It is new and unused. I threw away the original box, so it will be shipped in a different box. Thank you very much. m(_ _)m