This set of 4 mugs is made of bone china. They are dishwasher and microwave safe and come in a beautiful gift box. Each mug is approximately 11 oz. Features four scenes by famous Post-Impressionist Old Masters: Van Gogh 'Starry Night over the Rhone', Cezanne 'The Card Players', Gauguin 'Vase of Flowers', and Seurat 'The Bathers'.