The beauty secret of celebrity hairstylists, dermatologists and beauty experts. You asked We listened The contour sleep mask is designed to protect your delicate lashes and is made with slipsilk, the same silk used in the award - winning slip pure silk pillowcase. The slip contour sleep mask has been specifically designed with delicate eyelash extensions in mind *. The shape of the contour on inside of 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. * While slip has made all efforts to design its contour sleep mask to be suitable for eyelash extensions, slip acknowledges that not all lashes are the same and contour sleep mask may not be suitable for all lengths or types of lashes. Slip encourages you to use your own discretion in deciding whether the contour sleep mask is suitable for you. 3/4"x 8 1/2". This item can only be exchanged or returned by mail. Loft Slip Silk Contour Eye Mask Black Women's by Loft Size Regular - One Size Black Women's