The revolutionary on air comfort valve makes this pillow more easily adjustable than any other. just touch the valve button to find your ideal softness and support.Unique contoured design prevents mask from touching eyes or eyelashes for a more restful sleep soft and cushioned for superior lighht blockage and comfort adjustable elastic strap for a perfect fit lightweighted, hand washable and packable. Earplugs are small pieces of a soft material which you put into your ears to keep out noise, water, or cold air.