BLUETTEK Cotton Linen Decorative Pillowcase Square Throw Pillow Cushion Cover 18" X 18" (Purple) Size: 18 x 18 inches / 45 cm x 45 cm Made of 100% grade A durable cotton linen natural material Hidden zipper design, safe to machine wash Pure Simple design, easy to match your sofa and safe to machine wash Pillow insert is not included