The Tau planter from the Rectangulum collection is made from fibreglass, a composite material of glass fibre and synthetic resin that is lightweight yet strong. Thanks to the concrete structure, this planter has a robust appearance. The planter is suitable for both outdoor and indoor use. The frost resistant property ensures that the planter can remain outside during cold periods without being damaged. In addition, this planter is UV resistant, which protects it against discolouration and damage caused by sunlight.