This was a promotional item I received. It's for both hot and cold beverages♪ Capacity: Approximately 360ml Heat retention: 23°C (10 hours) Drinking spout: Slide-top lid Size (approx.): Diameter 8.6 x Height 10.4cm The shape is like a wide-bottomed cone, but it's difficult to convey in the photos, so I've included an image at the end to illustrate.