This retractable pergola from Outsunny allows you to adjust the canopy as you desire - enjoy the sunshine or relax in the shade. The metal structure is strong, with ground stakes and expansion screws included to keep it attached to the floor. It comes with a moving PU coated roof - easy to deal with moving sun rays. The curtains can also be moved - create an open/disclosed surroundings too. Enjoy outdoors better than ever before.