These ponds are robust, light to handle and are very popular. Top quality ponds manufactured in the United States. They need care in installation (backfilling), as they will deform from weight and pressure of water if not supported. Tha black colour gives the best illusion of depth and allows the decorative features of the pond to stand out e.g. fountains, plants , fish. Warranty does not cover degradation due to UV, so ensure the pond is protected from sunlight.