Generic Shark In Ocean Design Square Decorative Throw Pillow Case 16x16 Inch Custom Personalized Zippered Soft Cushion Case Cover for Sofa(One side) Material:50% cotton and 50% polyester. Size:16 x 16 inches Pillow insert are not included. Hidden zipper design.Safe to machine wash With pre-shrunk fabric,this pillowcase is washable at 60 degrees Celsius.