Frost resistant material Handmade - Each piece is unique Material suitable for outdoor use All SQUARE planters are handmade and attract attention with their cubic form. The lightweight POLYSTONEmaterial gives the containers their genuine, clean surface with a touch of texturized finish. As a result, the stone-like appearance of the planters makes them suitable for all kinds of interior and outdoor designs. SQUARE planters are ideal starting points for design and easily combined to create simple layouts of plants and flowers in any environment.