Specifications: Three sizes for your choice: Standard:20x26in/50.8x66cm Queen: 20x30in/50.8x76.2cm King:20x40in/50.8x101.6cm Material:100% silky satin polyester(smooth feel, comfortable and breathable Will not damage the hair, good skin-friendly) Packaging:one pack Pattern:External full pattern Thoughtful Design: ✔Single side envelope opening design, easy to replace the pillow core ✔No zipper without shell, pillowcase smooth and safe ✔The fabric is warm in winter and cool in summer, and can be used all year round ✔Natural resistance to shrinkage and wrinkles, durable and comfortable to use Clean Tips: Machine Washable Wash in warm water less than 40℃; do not use detergents such as bleach Note: Only sell pillowcases, not including pillow cores! Contact us if you have any question, we will reply you within 24 hours. You buy now we promise to ship you within two days