100% Blocking Light: Human engineering contour can improve 99% lightproof performance, to achieve a total darkness, perfectly match nose of any height. ^3D Design: Eye space is wider and deeper than common blinders, NO pressure on the eyes, allows you to blink freely, and don't touch your eye makeup. ^Improved Adjustable Buckle: Gentle, pain-free, easy-to-adjust headband wont tangle hair or snag pillow. Fully adjustable strap from 18.5 inches to 27.5 inches, Suitable for women/men/kids. ^Increased REM Sleep: Top Quality Material that will enhance your sleep and make you and your eyes relaxed and get a full nights sleep. ^Best Sleep Tool: A good helper for you to eliminate fatigue, improve sleep quality and give you more energy to work and study. Fit for Travel, Shift Work, Meditation, Yoga etc. Suitable for different kinds of occasions such as indoor, outdoor and camping.