Oosilk 100% Pure Mulberry Charmeuse Silk Pillowcase Cover 19mm for Hair Beauty, 1pc ,King, Black 100% Silk Imported 100% mulberry silk 19mm, mulberry silk values the highest quality among all kinds of silk. We only use Grade A long standard mulberry silk The best anti-aging product, hypoallergenic, natural, soft, breathable, and comfortable. High-quality silk works best for hair and face skin beauty and on reducing wrinkles Envelope closuredesign, fits pillows very well, prevent pillows from sliding out Chemical-free, naturally dyed, no color shading or fading. Size: Standard/Queen is 20 X 30 inches, king is 20 X 36 inches, each pillowcase has a 2inch border.