18" X 18" Square Poly Pillow Insert Hollow fiber Pillow Inner Vacuum Packaging Cotton Fabric With Pillow Forging 118" X 18" Square Pillow Insert, weight450g 2The Pillow Inner is designed for 18 X 18 Inches Pillow Cover to have a nice and full looks. 3Cotton Polyester cover and Hollow Fiber filling 4Washable, This cushion cover has a zipper, you can see the filler. 5I have a factory ,I have a variety of styles, can provide custom.