Kushina Personalized Square Cotton Linen Decorative Throw Pillow Case Decor Cushion Covers, 17.3 X 17.3-Inch ( Including Pillow Insert and Cover) (Owls with Birdcage) Material: Cotton Linen Pattern: Blue Butterfly About 17.3 x 17.3 Inch, 45*45 CM Including: Pillow Insert and Pillow Cover The Cover has an invisible zipper, it's easy to wash it.