Cute White Shark Opening Mouse Underwater World Pillowcase for Kids- Custom Personalized Pillowcase/ Pillow Cover Zippered with Comfortable Decorative Cotton and Polyester 20x36(twin Sides) Material:50% cotton,50% polyester.Printed on both side. Pillow inner is not be included. Original designed and sold by "Funny Kids' Home" Custom pillowcase in size Zip 20x36 (Twin sides) It's a zippered pillow case, with a zippered opening on the side Funny,pretty and durable