Model SM18 page magnifier is a deluxe page magnifier. Its 2x power acrylic Fresnel lens is sturdy and shatterproof. Model SM18 also has a 3x spot lens. It is perfect for reading large areas of small print such as maps, newspapers, directories, recipes and more. Simply hold the magnifier four inches above the reading material for a clear view. It is so thin you can store it in your reading material after use.