Square Cotton Linen Sofa Couch Chair Cushion Cover Decorative Throw Pillow Case 18 X 18 Fast Shipping From USA Made of durable natural cotton linen materials Fit for a 18 x 18 inch pillow insert, for best result recommend 20 x 20 inch insert Hidden zipper allows easy insertion or removal of insert Pattern only on the front side; Insert not included 100% customer satisfaction guaranteed or money back