Decorative Cotton Polyester Not My Monkeys, Not My Circus Pillowcases 18 x 18 Inches Cushion Cover Made of durable and soft Satin fabric. Size: 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 one pillow cover, not include insert. Due to hand cut and hand controlled sewing, please allow 0-1.5 inches deviation.