The pillowcases are made of silk, with rich elastic feel and extremely smooth appearance. Not easy to fold, sturdy and durable, not easy to be damaged by repeated use. 【Silk Pillow with Hidden Zipper】Hidden zipper closure design ensures that the pillowcase perfectly holds your pillow during the night without moving. Hidden zipper at the end allows you to easily put the pillow into the silk pillow. The natural fiber and tight weave of silk allows the skin and hair to slide over the pillowcase very smoothly and freely, it creates less friction between the hair and the skin and the silk pillowcase keeps your hair and skin smooth and shiny. 【Easy to Clean】Put the silk pillowcase in a laundry bag and put it in a neutral washing machine. It can be machine washed or hand washed, but it is not easy to twist it to dry. Let the pillowcase retain a certain amount of moisture and dry it in the shade to avoid wrinkles. Beautiful and luxurious silk pillowcase outer packaging. This pillowcase is not only for women, but also for men, the elderly and children.