It Made of Polyester.it Made of Durable and Soft Short-pile Velvet. Size:Set of two 20 x 20 / 50 x 50 cm,these pillowcases without inserts.The pattern is printed on both sides of the pillow cover. Zipper:These zippers are hidden and smooth.They will make you feel comfortable to use. Home Decoration:Suitable for bedroom,sofa,living room,car and so on.It have good breathability.It does not irritate the skin. Easy To Care: Your pillow can be easily inserted or removed.You can clean these pillowcases everytime,so you can keep your pillow clean and beautiful. Washing Tips:You can rinse with water or gently rinse with your hands,and hang dry.Please don’t use bleach,don’t iron.