The Tau Dolium planter is made from fibreglass, a composite material consisting of fibreglass and synthetic resin that is lightweight while also being strong and durable. The planter has a concrete structure and is suitable for use both outdoors and indoors. Thanks to its frost resistance, the planter can remain outside during cold periods without risk of damage. In addition, this planter is UV resistant, providing protection against discolouration and damage caused by sunlight.