About this item 100% Mulberry SilkGrade 6A, 100% pure, organic and long fiber mulberry silk. OEKO-TEX Certified (Standard 100). Queen: 20X30inch(51x76cm), King: 20X36inch(51x91cm). Package: solid PU bag.25 momme, 900 thread count. Compared to 19 Momme, 25 Momme silk has 30% more silk per square inch. It is 30% thicker and much more durable.Smooth, soft, breathable and cool-to-the-touch. Great for preventing facial and neck wrinkles, dry skin, tangled hair, and morning head. Perfect in giving silk care to you face, neck and hair all-night.Thick stitches: 13 stitches in 1inch. All pillowcases are handmade carefully and show fine workmanship. No tearing or breaking seams even after repeated washing.Envelope closure: overlapping portion is over 5.5inches in width. Prevent pillow from slipping out. Package: solid bag package.