Bloem 18" Casper White Grecian Plastic Urn. This traditional style planter is suitable for both indoor and outdoor use. Made of durable plastic with a casper white finish, it measures 18" in width, 15" in height, and 18" in depth. With a potting capacity of 0.5347 cubic feet and a planter volume of 16 quarts, it provides ample space for your plants to thrive.