Standard Size 18 by 18 Peach Chevron Zigzag Stripe Pattern Throw Pillow Cover Cushion Case Polyester Pillowcase with Invisible Zipper Made of Cotton Polyester Fabric. Size: 18" x 18", Insert are not included. This cushion cover has an invisible zipper. The pattern is available on one side, the other is white. Fashionable and newest design.