These pillows are much smaller than advertised. I ordered 18 in. and they measure 14 in. across the center. I have reordered 20 in. Hope they will work. Looks and quality good. Update-Have changed my rating from 3 stars to 1 star. The 20 in. were also smaller than advertised ,the looks and firmness was good but still to small. I returned the 20in and got the 22in. At $60 EACH they are terrible, they are very flimsy, not firm at all, they  were shipped crammed in a box no plastic cover.