Mayne 24-in W x 10.2-in H Black Resin Traditional Outdoor Window Box in the Pots & Planters department at Lowes.com
Amazon.com: Mayne Fairfield 5ft Window Box - Black - 60in L x 11in W x 11in H - with 4.7 Gallons Built-In Water Reservoir (5824-B) : Patio, Lawn & Garden
Venetian Window Box
Mayne Cape Cod 48" x 11" x 10.8" Rectangle Black Self-Watering Polyethylene Window Box Planter - Walmart.com