Please move the elastic band above the ears without a gap around the nose. This will block light and give you a completely dark sleep environment. Blink Freely:3D deep contoured design, eye space is bigger and deeper, will not touch our eyelashes and no eyes pressure.You can blink freely and get a good sleep. New Design:This 3D eye masks are light, breathable and soft as a whole. At the same time, the hollow design is made at the bridge of the nose, so that you can wear more comfortable. Two packs are also more cost-effective. Adjustable Strap:Our elastic and soft adjustable band allows our 3D sleep masks to be fitted to any head size without damaging your hair,you are free to adjust as needed. Whether it's for yourself or your friends, it will be a little surprise. Thanksgiving, Christmas, Mother's Day, etc., our 3D eye sleeping masks will be a luxurious gift.