3X Magnification: Magnify up to 300%, suitable for reading newspapers, maps, and magazines, good for home traveling, experimental observation and others. Portable and useful: size 3.1*2.2in, thin Fresnel lens are well made, concentrating the sun's rays, a great tool for daily use. Pocket Magnifier: the magnifier is lightweight and pocket size; You can place it in a purse, wallet, pocket and so on, easy to carry. How to use: place the magnifier above the object to be observed so that the lens is parallel to the line of sight, distance imaging is clear and maximum magnification is nice, find the better viewing position when moving the identified object. Good performance: the pocket magnifier is flexible, made of good quality PVC plastic material, providing clear and nice viewing effects, perfect for seniors with low vision.