1.LAPTOP & PHONE UNIVERSAL SCREEN MAGNIFIER: This laptop & mobile phone screen enlarger adopt HD zoom optical technology, Can be applied to laptop/tablet/mobile screen magnifier 2.SIX-POINT DESIGN: There are a total of 6 branch points on the screen nagnifier, and the 4 pivot points can be rotated over 180 degrees, which allows the product to be placed in a variety of ways, such as reading and spapers, magnifying laptops, magnifying piano scores, etc 3.HIGH QUALITY MATERIALS: 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 4.SCREEN MAGNIFIER DIMENSIONS: The 21 inch laptop & phone screen amplifier total Length 19 in (50cm), total height 14.3 in (36.5 cm). the screen Length 19.3 in (49cm), height 10.5 in (26.7cm).