JSYOUDF Custom Soft home Decoration Cartoons Cute Adorable Invader Zim Gir Rectangle Pillow Case 18"x18 " pillowcase. (two side) Made of cotton linen cloth material Size18x18 Inches 45*45 cm High quality hidden zipper on one side Patterns are two sides An invisible zipper on the side, very easy and convient for you to clean.