With anise aroma and extra oyster shells, this shell sand is free from disease carrying germs and completely clear from all harmful ingredients. It is the ideal bird cage soil covering as it contains ground seashells. It also bears minerals and substances of animal nature taking care of a healthy bone structure that is so important for your birds, especially during the breeding season. The oyster shells see to it that the calcium arrives into the blood circulation. At the same time, the quality of the eggshell is visibly better.