- Large universal screen magnifier for notebooks, tablets and mobile phones. Outer frame size 19.6 x 14.3 inches (50 x 36.5 cm); magnified viewing area roughly 21 inches. - High-definition optical lens with an environmentally friendly wooden frame. Adjustable viewing angles provide comfortable 3D-style viewing away from the device; can help prevent mobile phone radiation from harming the body. - Uses high-definition optical technology to enlarge phone screens up to 3x. Eye protection and anti-blue light properties; no power consumption. Relieves discomfort and visual fatigue from long periods of focusing on small screens. - Easy to use and durable; the frame resists deformation and stays sturdy. A good gift for children to protect their eyes during close viewing. A great gift for the elderly to see the screen more clearly. Effectively prevent the radiation generated by mobile phones from harming eyes.