The Versele-Laga Shells and Kristal Box contains sand for birds with shells and seeds of anise. This layer acts as a bedding layer for your birds. It offers a comfortable environment to your pets. Versele-Laga was founded in the year 1932 by Prudent Versele. Today Versele-Laga has become a renowned international brand famed for manufacturing pet food and care products. The company also specializes in creating beneficial products for sporting animals.