When I ordered, I was concerned about this including all 4 panels (as opposed to just one) and about it being large enough for my 13x13 gazebo which has angled corners, not right angles. Turns out it is all 4 panels and it's plenty big. My gazebo could have been another few inches on each side. Additionally, it comes with two different ways to attach it to the gazebo (hooks that fit into a track and rings that loop over a bar). Looks very nice and the zippers work smoothly. I think this is a great buy especially for the price.