Add a beautiful finishing touch under your windows or accent the edge of your patio with Mayne's Cape Cod Window Box Planters. Mayne's molded plastic planters are made from 100%; high-grade polyethylene This Window Box features a double wall design creating a water reservoir. Outside Dimensions: 48"L x 11"W x 11"H. Inside Dimensions: 44"L x 7"W x 8"D. Water reservoir capacity is approximately 4 gallons. Soil capacity is approximately 10 gallons. Includes 4 wall mount brackets with a black powder coated finish. The weather-proof and ultra-tough construction allows you to enjoy your window box all year long with very little winter preparation. The UV inhibitors within the resin allows for a long lasting fade-free performance. 15 Year Warranty – Residential Application, 5 Year Warranty – Commercial Application. Made in the USA.