Features: High visibility and aesthetics: Featuring a transparent window, these basement window well covers provide visibility of the underlying infrastructure. The clear panel allows for inspection without the need for removal. Additionally, their sleek design adds aesthetic value to the landscape. High UV and weather resistance: The window covers for winter are built with materials that withstand harsh weather conditions and harmful ultraviolet rays. This enhances their lifespan and assures continuous optimal performance, saving you the cost of frequent replacements. Specifications: Material: anti ultraviolet polycarbonate Color: clear Size: about 39 inches/ 99 cm in length, about 16 inches/ 40.6 cm in width, back plate about 2 inches/ 5 cm, thickness about 0.18 inch/ 4.5 mm Package includes: 1 x Window well cover 5 x Screws Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.