The Den Daas planter from the Doppio Bordo collection is made of terra cotta, an unglazed earthenware. This planter has a smooth structure and a natural finish, making it suitable for use both indoors and outdoors. A drainage hole has been added to the bottom, allowing excess water to be easily drained. Due to the unglazed nature of the terra cotta used, it is recommended to use a liner to make the planter completely watertight.