Fabric: The pillow covers are made using 100% certified cotton fabrics only. The fabric is 400 Thread-Count cotton. In the fabric industry, the thread-count means the count of yarns/threads per square inch; in simple terms higher the thread-count, more will be the threads and more comfortable and excellent the fabric would be.Package includes: 2 pillow covers perfect fit size for pillows of King Size dimension 20 X 40 inches. The Pillow covers are not zippered so can be machine washed without much worrying about damages.Smooth Returns: We try our best to offer the best quality materials to our dear customers at minimum prices. The material is up to the standards of 4-star hotels. For 5-star standards, you can purchase from our 400 Thread-count collections. For us our customers are everything, so if you are not satisfied with the purchase or haven’t got the correct material, do let us know, we surely will help you.pillowcases match with most surrounding decor. Perfect choose for dorm, master bedroom, guest room, or kid’s room.Machine Washable: The pillow covers are 400 Thread-Count certified cotton. You can machine wash or hand wash them normally. Use mild detergents and avoid using bleaches.