Raya Travertine Egg CupThese beautiful egg cups are made using natural onyx. Each item is unique with different colouring and natural patterning. Onyx may contain small cracks, holes and pits that are characteristic of this authentic product. Dimensions 5 x 7H cm. Onyx is naturally porous so please treat it with care. Only use stone soap or mild dishwashing liquid with warm water to clean. No two pieces of Onyx are the same, so enjoy your one of a kind natural crystal