Bloem LWB1800 Lucca Self Watering Window Box Planter, 18-Inch, Black Perfect for first-time gardeners, travelers, and drought conditions Self-watering feature creates a water reservoir to prevent over watering and under watering. It also keeps plants healthy by suppling constant moisture and preventing nutrients loss common to traditional planters. Includes drainage holes, water reservoir and saucer tray for worry free spills indoors or out Top width 9 in (x) Base width 15 in (x) Height 7.5 in Matte finish is perfect for resisting scratches, dirt, and fingerprints 100% UV stabilized polypropylene plastic ensures long lasting color and withstands extreme weather conditions + BPA free