The biOrb Flower Ball with Daisies is inspired by the British Starwort, a native aquatic plant with tiny white flowers. Use to provide interest in the base of your aquarium. It is equipped with a weighted ball at its base to prevent floating. The height of the topiary ball is 4.33 inches / 11 cm and 5.12 inches / 13 cm in width. Suitable for all aquariums.