Steel frame beautiful natural wood grain pattern to replicates the look and feel of natural wood Supporting rails and pipes attached make the structure sturdy and tough 8 L-shape ground stakes and 8 expansion screws included for added stability Canopy can be retractable and sliding to let the sunlight in or keep the shading area Water-resistant and UV-resistant fabric fits the rainy days and hot days Suitable for backyard, garden and commercial places Assembly required Outsunny Retractable Garden Pergola | Living Social | Living Social