1.21 Inch Large Size: A universal screen magnifier for notebooks/tablets/mobile phones. 19.6 x 14.3inches(50x36.5cm), screen is 21 in. 2.The Screen Magnifying glass uses high-definition optical lens material, the wooden frame bracket is environmentally friendly, and can adjust multiple viewing angles. It can enjoy 3D vision away from the screen, effectively preventing mobile phone radiation from harming the human body. 3.Screen Magnifier Use high definition optical technology to enlarge 3 times on the phone screen,Relieves discomfort and visual fatigue caused by focusing on small screens for long periods. 4.Easy to use, the screen is not easy to deform. The simple and stylish design makes this product the choice for your holiday christmas gift to friends or loved ones.Smart gifts for families,seniors,girls/boyfriends.It can be a technical gift,more suitable for seniors to watch movies and s.