The Tau planter from the Cylindrico collection is made from fibreglass, a composite material consisting of glass fibre and synthetic resin. This material ensures that the planter is lightweight while also being strong. The structure of the planter is concrete. The planter can be placed both indoors and outdoors. The planter is frost resistant, which means it can remain outside during cold periods without being damaged. In addition, the planter is UV resistant; as a result, the planter is protected against ultraviolet radiation, preventing discolouration and damage caused by sunlight.