Himoud World Flags 50% Cotton 50% Polyester 20 x12 inches Pillowcase Suitable for rectangle pillow, pillow insert is not included. Made of durable 50% cotton, 50% polyester cloth material Size: 20 x 12 inches/ 50*30CM The pattern is only available on the front side. The back is the nature material color without printing. The custom pillow case is without buttons, and has an opening on the side