The Swirl Cup has the illusion it has been twisted. Inspired by the lines and texture of sand dunes that are formed by the wind. This results in a collection with a surprising look and perfect grip. The items are slib-cast into molds and released by a self developed method. The outside color is white and for the inside there is choice of four different colors. The Cups are made of porcelain, and are toxic-free and food safe. Dishwasher proof and safe for, oven and microwave. Height: 10 cm (4'') Diameter: 9 cm (4'') Volume: 250 ml (9 Fl.oz) In need for another mug, take a look at the Thermo Cup or more from the Swirl Collection