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 magnifierMaterial: wood, ultra-clear optical lenscolor: Wood color , WhiteSize: 365MM x 500MM x30MM （21 inches）▶Note:◆ About color difference: This product is a real product, but due to different light conditions, monitors and personal reasons, the actual object may have some color deviation from the photo, and the final color is subject to the actual object.◆ About size: Please refer to the detailed information and size table before purchasing the product. The product is measured manually, with some errors. The actual size is subject to the actual product