Pair of Parachute Home linen decorative pillow cover in raisin . 21”x 21” 100% linen These are marked 51cmx51cm. Which is just under 21” you can see they measure 21” solidly. (Photo) Linen stretches would fit better with a 22” or 23” insert depending on what fullness you like. A beautiful brown purple color. These are gorgeous the color just didn’t work well in my home.