The Voronoi cast iron grating is suitable for use with the manufacturer’s drainage systems in both horticulture and landscape gardening. The seemingly random arrangement of geometric shapes recalls the markings of a giraffe or cracks in dry soil. With this organic motif, the grating easily blends into mineral and planted settings. It is made of a robust iron-carbon alloy and thus offers good corrosion resistance. A special coating offers protection against the weather.