Generic Personalized Funny Cute Pizza Cat Nebula Galaxy Space Design for Rectangle Pillowcase 20 x 36 ( One Side) Size: 20 x 36 inches. Fits most size pillows. 50% cotton, 50% polyester.More comfortable and durable. Without buttons, and has an opening on the side.pre-shrunk fabric, this pillowcase is washable at 60 C. Made from soft blend of fabrics, giving the pillow case a soft and comfortable texture. Delivery time is about 9-12 business days.