OpticLens Brand handy 4.5 x 7 inch magnifier makes a great reading aid for newspapers, books, magazines and menus. It's handy size and light weight make it easy to hold and travel with. It's made from light, strong, flexible PVC. This does not mean it's scratch proof, but it won't shatter if you drop it. Powerful 3X magnification means printed type will be magnified 300% of its normal size. As with all fresnel lenses and most other magnifiers, these need to be elevated off the page to magnify. Effective distance from the page is approximately .5 to 10 inches with the magnification gradually increasing as you raise the lens - allowing you to easily choose your desired magnification. If needed, can be trimmed to a smaller size with sharp scissors or razor blade. Comfortable to hold. Makes a great gift. Made by Opticlens.