The Erommy adjustable louvered hardtop pergola is an updated and innovative design of the traditional hardtop gazebo and open roof pergola. The roof is designed with two separate louvered roofs that can be opened at a 90 angle and swivel closed to 0, providing maximum control over the weather elements. At night, you can open the louvers and enjoy the night sky while relaxing in your favorite chair! If the weather changes and it starts to rain, simply close the louvers and continue enjoying the outdoor living area with friends and family. Light to moderate rain is easily drained through the integrated gutter system. It is the best choice for your outdoor gazebo.