Kikkerland Surreal Mug SetA mavelous house warming gift for a friend or family member, this is great for saving space, is a stylish choice of decor and adds an interesting touch to the kitchen. This set of 3 surreal stacking mugs is made of dolomite, and when stacked together, it forms a face. Product Descriptions: Set of 3 surreal stacking mugs that form a face Material: dolomite. Product Size: 3. 1" x 3. 3" x 4. 3"