Good Material:100% Mulberry Silk pillowcase 2 packwith hidden zipper designHighest Grade Silk Pillow Cases. Sleeping on silk will bring lot of health benefits for people. You will be younger and more beautiful with silk.Hidden zipper:Durable Exquisite craftmanship with neatstitches and invisible zipper design, the invisible zipper design keeps the pillowcaseseamlesslet you dont feel the presence of zippers.SizeColor: STANDARD size 20 x26 Inches (50x66cm) fits most STANDARD size pillows,QUEEN 20x30 Inches (50x76cm) fits most QUEEN size pillows. KING 20x36 Inches (50x91cm) fits most KING size pillows. Multiple colors and sizes for your choice.Healthy to skin and hair: Pure silk pillowcase which can keep your skin moist reducewrinkles. Slip silk pillowcase can give you comfortable and cool touch