Artswow Game of Thrones Throw Custom Rectangle Pillow Cases Pillowcase Covers Standard Size 18"x18" (Tow side) Cotton Material: 50% Cotton and 50% Polyester High quality and Eco-friendly Made of cotton and polyester,zipper on the side. the pattern is printed on the front side, easy to match your sofa and safe to machine wash Having this unique pillowcase, it will lighten up your room.