Fall Pillow Covers 18x18 Set of 4 Very pretty and bright colors which are very suitable for fall and Halloween Decor Pretty designs The indoor outdoor pillow covers are made of waterproof linen material, durable and sturdy, and it is not such easy to get dirty as cotton, saving you much time to clean. Invisible Hidden Zipper closure design ensures the pillow an elegant appearance The farmhouse pillow covers can be used either indoor or outdoor. Elegant decorations for home sofa, chair and bed.