What it is: A contour sleep mask made from the highest-grade mulberry silk that's designed with eyelash extensions in mind.What it does: The shape of the contour on the inside of the sleep mask has been designed to sit away from your eyelids and allow additional space for your eyelashes to sit while you get your beauty sleep. Slip pure silk products are made using slipsilk. Specially-commissioned and made to Slip's exacting standards, slipsilk has been developed and refined over 10 years to provide the ultimate combination of shine, thickness and durability. How to use: When washing the pillowcase, hand wash or use a delicates wash bag. Do not tumble dry or bleach. Use a pH-neutral liquid detergent and dry flat. 8 1/4" x 3 1/2" 100% silk Hand wash at 30ºC/86ºF, dry flat Imported