Bird's Nest Throw Pillow Case Vintage Cushion Cover Pillowcase Gift 18 18 Hidden Zipper Pillow Cover (18'' 18'', Piillow238) made by linen & cotton fabric high quality feel smooh and soft suitable decor for home,bedroom,living room and your sofa standard size 18"x18" or 45 cm x 45 cm and can use 16"x16" ** Pillows are not included The throw pillow cover can be machine washed with mild detergent and tumble dried