Plus, Ikea has 20 by 20 feather inserts for $7. But as a tip for anyone about to start a project with them--make the pillowcover smaller because the feathers are quite compressible. I made two new pillows from a Kokka of Japan print and cut it to be 20 in. square plus seam allowances. They look good, but the inserts that got stuffed in my older, slighly smaller (17 or 18 inches square) pillows actually look better.