Orla Kiely Stacking Mugs Atomic Flower. Set of 2, 4 or 6 ceramic Stacking Mugs in Orla Kiely’s Atomic Flower print. Set contains different colour combinations with contrast stepped bases for stacking. Each mug has a capacity of 330ml. Gift boxed. Available in colour ways Bubblegum & Basil, Sky & Sunflower, Jewel & Latte set of 4, or a set of 6 mugs with one of each colour.