The Tau Rotunda planter is made from fibreglass, a composite material of fibreglass and synthetic resin, which is lightweight while at the same time offering a high level of strength. The structure of the planter has the appearance of concrete. This model is suitable for use both outdoors and indoors. Thanks to its frost resistant properties, the planter can remain outside during cold periods without risk of damage. In addition, the planter is UV resistant, providing protection against discolouration and damage from sunlight.