Feature●Cotton●Material: Cotton linen ,Invisible Zipper，Front Print ,back without any design●Size ： 18 x 18 inch (45 x 45 cm ,sometimes it have 1-2 cm error)●Only have 1 pc pillow cover ,not include insert ,you need to buy it yourself ,i think 20 inch insert will fit well .●Its a zippered pillow case, with a zippered opening on the side.●You can wash it with Machine，Cold Water is ok . Item not Fade ，not stain，Beautiful Style will decorate your room more vitalityDescription throw-pillows