DO NOT BUY!! The cushions are very thin and you can feel the seat base through them. I let them sit out for 3 days to "rise"  but there is no way the cushions are 4". I liked how they looked so I really wanted them to actually be COMFORTABLE but they are not.
I am returning them and Wayfair is charging me $58 to return. I have always been a loyal Wayfair customer but will think twice next time before I order from them based on this customer service.