Product name: 100% natural silk pillowcaseProduct size: Large -King-20 x 36 inches (51cm x 92cm), medium -Queen-20 x 30 inches (51cm x 76cm), Standard- Standard-20 x 26 inches (51cm x 66cm)Color: Black, Silver, dark gray, Navy Blue, Light Champagne, Champagne, Peacock blue, jewel blue, pink, red, dark green, light green, white.Features: Silk pillowcaseKnown as beauty pillowcases, silk pillowcases are very soft, cool, and no matter how much you squeeze and rub while sleeping, a face will never be tight. Silk pillowcaseNot only is it beautiful and wrinkle resistant, it also keeps your hair soft and smooth, and you will find that your hair is less prone to tangles and frizz.This is because natural silk is a natural protein fiber composed of 18 amino acids, which is different from cotton and chemical fibers and has a very good affinity with human skin.Silk is a protein-rich natural fiber that contains 18 amino acids similar to those found in human skin. Silk adheres to the skin through contact and friction, and has the role of protecting and moisturizing human skin, delaying aging and increasing the vitality of epithelial cells, preventing vascular sclerosis, promoting wound healing and reducing white blood cells.Why use natural silk?1. High quality material: Silk pillowcase made of 100% 6A grade 22 silk, 600 woven.2. Benefits for hair: Silk can reduce friction on delicate hair and prevent split ends and breakage.3. Elegant design and superb workmanship: Our senior tailors ensure that every stitch is perfect and your design is safe and beautiful. The hidden zipper perfectly supports your pillowcase.Washing and care instructions:1. For best results, wash silk pillowcases by hand in cold water using a mild neutral liquid detergent. Detergents specially formulated for silk maintain the silky softness of the fabric.2, black silk soaking time should not exceed five minutes. Wash alone, do not mix with other harder fabrics, as this will damage the finer silk fibers.3. Avoid dryers. Heat can greatly alter the silk and cause it to lose its softness/shine.4. Wrinkles on silk will disappear over time, so ironing is not recommended. If needed, be sure to use a low steam setting and iron the damp silk backing, which can restore some shine to the satin front.5. Always remove makeup and mascara before going to bed. Not only can your skin breathe, rest, and recover, but a white pillowcase wont smudge. (Do not use bleach products, this will cause the silk to turn yellow!)