18" Square Game of Thrones Cotton Linen Cushion Pilowcase(winter Is Coming) 18" Square Game of Thrones Cotton Linen Cushion Pilowcase Cover Ikea Art Decorative Throw Pillow Home Sofa Car Chair Pillow Case Material:100% natural new Linen Cotton Fabric. Size:Each cover measures approx 18"x18" (45cm x 45cm) Printing:Front side printed, back side is pure hemp color. Item just contain the pillow cover. Inside filler is NOT included.