Decorative Throw Pillow Case Cushion Cover (Navy Quatrefoil) 18 "X 18" Cushion cover does not include insert, includes only the pillow case Pillow case is 18x18 inches (45x45 cm) and is made of 50%/50% cotton polyester blend fabric Design pattern is printed only on one side Includes invisible zipper closure, machine washable air dry ALERT: Customers are recommended to buy pillow product sold by Amazon to guarantee high quality. Beware of other sellers who might be selling fake or low quality products.