This polished pool finish is designed with mostly black pebbles and accented with a sizable amount of vibrant blue glass and a generous amount of shimmering ocean shells. Hidden Treasure is a perfect finish for those that desire a reflecting pool. The watercolor hue cast by black bottom pools can be either blue or green. Because of the intense color, they are highly influenced by their surroundings and sunlight. Random white pebbles are inherent in this product.