If you’re thinking about putting a shade sail up over a pool or deck, I highly recommend this one.  We have two huge triangle sails for our pool and we struggle to get shade where we want and need it.  They are very awkward to put up inside of a pool cage.   This rectangular shaped sail is so much better for planned shade.  The material is very durable and the holes on the corners are made with some serious hardware.  This will easily last for several years.  We are very happy with everything about this sail.