The 20 inch fits my 16 inch pillows.Material not quality. I am keeping them for fall decorations, but would not buy again.Expected the colors to be brighterIn love with this pillow covers, graet fabric and colorsCute pillow cases for the price. However one of the pillow cases came stained.The pumpkin and fall pillows are faded. Not black like the picture. Overall cheap qualityThe color is much more pink than orange. Sending back.3 of the four pillow covers are jammed up zipper. Cheap quality of the sewing. 20x20 pillow will NOT fit these , more like 16x16These are garbage. They are almost pinkish. The silkscreen is severely faded. Can't imagine why they would even send these out. Don't waste your money!