Using Premium Materials: Our satin pillowcases are made of polyester. Unlike pillowcases of other materials, satin pillowcases have better elasticity and a more beautiful appearance. They are good for hair and skin and you can directly feel its comfort and softness by touching the satin pillowcase. Hair Care Secret: Our satin pillow cases can not only smooth your hair, but also can prevent your hair from becoming tangled and knotted after sleeping, because the satin pillowcase is very silky and soft. In the early morning, you can be more convenient and save a lot of time to tidy up your hair. A good day starts with hair! Human-Friendly Design: The envelope-style satin pillowcase can help you put in and out the pillow more conveniently, and the design without zipper can prevent you from being entangled with other clothes when cleaning the pillowcase EASY TO CARE - Machine wash cold with a mild detergent, gentle cycle, tumble dry low. Do not bleach. Polyester satin is best alternatives for silk, wrinkle free, stain and fade resistant, easy to care. If your skin is sensitive, we recommended that you wash it before using. EXTRA VALUE PILLOWCASE SET - Available in 4Pcs Satin Pillowcases Set, soft and breathable, sensitive skin-friendly to you a comfortable sleep all night long. Sleeping on silky pillowcase is the perfect way to end your day. size:About 51X76cm Material:Polyester colour:white Package Contents: 4 * Polyester Satin Pillowcases Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.