Sandy Tropical Paradise Beach with Starfish and the Sea Ocean Cushion Case - Decorative Square Throw Cushion Pillow Case Pillow Shell Pillowcase - 18x18 inches Dimensions: 18 x 18 inches (square). Made of satin fabric. Only one sides have images,the back side is white. Hidden zipper design, Safe to machine wash. Usually it need 7-15 days to arrive.