Nice cushion covers.  I covered over entire cushions that measured close to 28  inches square (27 1/2?).  The fit was tight, but worked out perfectly for semi-flattened cushions.  They're still a bit bunched in the picture, but know they will flatten over time.  The fabric is thicker and nicer than expected.  Four stars because I have no idea how the will hold up over time.  Definitely not disappointed with the purchase!