Lechuza Classico Color 21 Planter, Slate Matte CLASSICO Color is perfect for table and patio plants, indoors and out Made in Germany of durable frost and UV resistant PP plastic for indoor or outdoor use Self-Watering System features inorganic granulate compounds that provide the right amount of water to plant roots Drainage plug to allows for the removal of excess rainwater when installed outdoors A water-level indicator lets you know when it is time to refill the reservoir