This 5-pack of green rectangular window planter boxes features heavy-duty plastic construction with detachable self-watering bases. The built-in soakaway grid and side overflow outlet prevent overwatering and soil spillage, making it ideal for growing vegetables, herbs, succulents, and flowers on windowsills, balconies, and patios. | Oumilen | | 5-Pack Window Planter Boxes, Green Rectangular Plastic Plant Pots with Self-Watering Base for Balcony Windowsill Garden | Best Buy