The Screen Magnifying glass uses high-definition optical lens material, and can adjust multiple viewing angles. It can enjoy 3D vision away from the screen,Relieves discomfort and visual fatigue caused by focusing on small screens for long periods. Using high-definition zoom optical technology can improve the display effect of the mobile notebook screen by 3-5 times. Can offer you a super clear picture quality and an better viewing effect similar to the 3d video dynamic effect. Simple and stylish design solve the problem of phone small screen, This cell phone screen magnifier is the best choice of holiday gifts for your family, friends, loved ones, movie lover and Game playmate. Product parameters： Product name: Notebook screen magnifier Material: Acrylic, ultra-clear optical lens color: balck Note: Please do not use in places with direct sunlight as light or objects reflected in bright places