Cotton Stripe Pattern Pillowcase Modern Zigzag Chevron Orange Aqua Blue Pattern Throw Pillow Covers 18 x 18 Made of polyester fabric. Size: Approx.18 x 18 inches, Print on one side, the other is white blank. It's a zippered pillow case, with a zippered opening on the side. Please Note: Just pillow cover, not include insert. Perfect for beds,sofas and home decoration.