Joy City Kinda Pissed Not Being A Mermaid Pillow Cover Throw Pillowcase Square 18 x 18 Inches Throw Pillow Cover Cushion Made of durable and soft Satin Fabric. Size: 18 x 18 Inches, print on one side, the other side is white blank. It's a zippered pillow case, with a zippered opening on the side. Please Note: Just 1 pillow cover, not include insert. Due to hand cut and hand controlled sewing, Please allow 0-1.5 inches deviation.