General Tools 553 4x Illuminated Pocket MagnifierGeneral Tools offers a wide assortment of magnifiers with high-quality lenses to provide sharp, clear inspection without causing uncomfortable eyestrain. They are frequently used in professional settings by toolmakers, jewelers and engineers, as well as by hobbyists such as stamp collectors, coin collectors and model builders. This compact Pocket Magnifier features a powerful 4x lens and a built-in illumination setting for working in dimly lit areas.General Tools 553 4x Illuminated Pocket Magnifier Features:; High quality 4x optical plastic lens; Compact design slides easily into your pocket; Great for quality control inspections, jewelry making and electronics assembly; Commonly used in stamp collecting, coin collecting and model building; Switchable light aids inspection in poorly lit areas; Body made of sturdy plastic; Includes 2 AAA batteries and a #222 bulb.; 4x magnifier; Great for quality control inspectors, jewelry making and electronics assembly; Compact design slides easily into your pocket; Switchable light aids inspection in poorly lit areas; Sturdy plastic body