About this item 100% Polyester Satin:Made the queen satin pillow case soft and more comforatble to sleep onMachine Washable: Spend few minutes washing and dry via dryer without getting broken much more easier to take care than silk pillow case the smooth pillow case and Durable and last longgerImprove hair fallout and take hair frizzy aways: zhoubin Satin pillowcase is super soft and smooth to protect all hair types from friction, breakage, frizz, and bed head. Stain pillowcase can help your skin maintain its natural moisture, which helps prevent dry skin and facial wrinkles throughout the night. It Makes a great gift for anyone who enjoys deep, restorative sleep!Envelope Style: comfort and better fit; Handmade, top-quality workmanship that lasts. Hidden zipper closure design makes the silk pillowcase hold your pillow perfectly overnight without moving around. Hidden zipper at the end allows you to fit the pillow into the zhoubin pillowcase easily.100% SATISFACTION GUARANTEE: We are so confident in the quality of our product that we offer a 30-day satisfaction guarantee! If you find our products have quality problem, simply contact us and we will solve your problem.