Pet-door patio panel for medium-sized pets up to 40 pounds * Heavy-duty aluminum construction with corrosion-resistant powder-coat finish * Shatter-resistant tempered safety glass; spring-loaded self-adjusting design * Flexible, vinyl flap measures 8 by 11 inches; 2-inch rise; instructions included * Measures approximately 12-1/2 by 3/4 by 81 inches; limited lifetime warranty