Generic Book Crash, Boom Pillow Cover 18 x 18 Inches Holiday Pillowcases Made of durable and soft Satin Fabric. Size: 18 x 18 Inches(1 inch error range is allowed), print on one side. It's a zippered pillow case, with a zippered opening on the side. Please Note: Just one pillow cover, not include insert. The real color may not be the exactly same as showing in the pictures due to the color difference of monitors.We hope you can understand.