Yellow Striped Nautical Pillow Cover Blue Anchor Pillow Case Superior Polyester 18 x 18 Inches Suitable for square pillowcase, pillow insert is not included. Made of Polyester material, snug zippered. Size: 18 x 18 inches/ 45 x 45CM The pattern is only available on the front side. The back is the nature material color without printing Machine washable, Portable and convenient.