Description This is a pinhole eyeglasses, made of high-class materials, durable and can be used for a long time. Aperture glasses are glasses with a series of pinhole-sized perforations that allow only a very narrow beam to enter the eye to reduce the size of the circle of confusion on the retina and increase the depth of field. This glasses can protect your glasses and improve eyesight. Practical and durable. Features -Color:As Shown -Material:PC -Size:14.20X11.80X4.10cm/5.58X4.64X1.61in -Durable: This Pinhole Glasses is made of high-grade PC materials, practical and durable, and can serve you for a long time. -Functional: The pinhole only allows a narrow beam of light to enter your eyes, improves focus, helps relax the eye muscles and reduces tension. -Wide Application: This Pinhole Glassescan be used in short and long distances, suitable for adults or children with nearsightedness, farsightedness, and astigmatism. -Ergonomically Design: This Pinhole Glasses designed with the full frame design, ergonomically, which is easy to use and wear, will not bring you any burden. -Good Gift: This Pinhole Glasses is functional and also decorative, you can share them with your friends and family as a gift because they are useful and practical.Package list: 2 x Pinhole Glasses