A natural and smooth silk pillow cover for your healthy deep sleep. * Healthy Fabric: 19 Momme High-quality pure double-sided mulberry silk, skin-friendly, smooth, and breathable. 19.7*29.5 inch. * what mulberry silk: Comes from the country that accounts for 82% of the world's production, it is 100% 6A grade, ensuring high quality with 19 momme thickness, density, luster, etc. are strictly controlled, as light as feathers, smooth to the touch, relaxing the nerves of the head, and keeping the head healthy. * Washable: Hand wash in cold water or dry-cleaned, suggested daily cleaning after use. * Removable Closure: Four adjustable straps for flexible closure and removal.