The MacCourt 42-in W x 17-in H x 15-in D Plastic Window Well Cover is a protective covering designed to fit over a window well. It is made of durable plastic material and is meant to prevent debris, animals, and water from entering the window well. The cover has a width of 42 inches, a height of 17 inches, and a depth of 15 inches. It is typically used in basements or below-grade windows to keep the window well area clean and secure.