THXSILK Luxury 100% 19 Momme Silk Pillowcase with Zipper - 20"x26"(51x66cm), Royal Blue Year-end Deal: Save 6% Off for the Comforter as Long as You Add It Into Your Cart! Search: B07lg4szjn Fabric: 100% <span class="a-text-bold">22 Momme</span> Mulberry silk. Thread Count: 600 Closure: Hidden zipper at the short side Zipper Color: Same or match with the silk pillowcase International Certification: OEKO-TEX Standard 100 Toddler: 13 x 18 inch Twin / Standard: 20 x 26 inch Queen: 20 x 30 inch King: 20 x 36 inch Hand wash is recommended and machine wash is also possible. Machine-washable in lukewarm water (30C) on most gentle cycle available. Use gentleor special detergent for silk. Hang dry without direct sunlight if possible. Tumble dry on a cool setting if using drying machine. Avoid drying for extended period of time. Iron when slightly damp using a cool setting. Always iron on the inside. Closure Design: Hidden zipper Open side &amp; size: 16 inch at the short side. Advantages: Perfect fit for your pillow, and can sleep on both sides. It can also make the pillow stay in firmly. Its climate is mild, suitable for the growth of silkworm Its land is fertile, grow fine mulberry leaves Its water is pure lake water, irrigate the mulberry Biological breeding mode: naturalness, green and none pollution Grow our own mulberry Silk worm rearing Cocoon production Silk production Ensure the high quality of raw materials Modern workshop, clean and tidy, ISO9001: 2000 380+ staff: 70% of them are over 50 years old, with more than 10 years experience Constant temperature and humidity warehouse 3 stores located in Beijing, Chinese capital 5 stores located in Shanghai, the magic city, the modern city, the Pearl of East 56 stores in Suzhou, our main base of producing and selling