Lechuza 18053 Maxi Cubi Self-Watering Garden Planter, Charcoal Metallic Maxi-cubi is perfect for Small foliage plants or blooming plants Made in Germany of durable frost and UV resistant pp plastic for indoor use Simple yet elegant design complements any decor Self-watering system features inorganic granulate compounds that provide the right amount of water to plant roots A water-level indicator lets you know when it is time to refill the reservoir