The sail is not really rectangular, as one might think by the description, because if you want to stretch it exactly rectangular, it depends always, so that the rain accumulated in the sagging sails. Moreover, the seams at the eyelets (especially in the center) is not particularly stable. We are well handled with care by sailing. In stronger winds, we have suspended the Selgel. But even slight gusts it tears down (for us after only 10 days). It can therefore actually use only in good absolutely no wind. I think this is for an awning that normally costs no more than 80 good quality, you should be more entitled to expect. For us, it has not served its purpose, so we send it back. I hope the seller accepted our complaint, which I believe is entirely justified.