The Pottery Pots Ridged planter is made from ficonstone, a mixture of cement, sand and fibreglass, making it a sturdy material. This planter has a ribbed structure and is suitable for use both outdoors and indoors. The planter is frost resistant, so it can remain outside during cold periods without being damaged. In addition, the product is UV resistant; the planter is resistant to ultraviolet radiation, providing protection against discolouration and damage caused by sunlight.