ArtStone Ella 6 in. black square decorative planter has a high-end look for indoor and outdoor use. This planter is produced from a mix of durable resin and natural stone creating a distinctive marbled fa�ade. Each ArtStone planter features a Water-Minder reservoir, rehydrating plants as needed and making it self-watering. Keep rubber plug inserted for indoor use. Remove rubber plug for outdoor use.