The ideal tool to view objects at 2X magnification in bright light, with high contrast, and with a sharply defined focus. Large viewing area (4 x 2-1/2 inches). Sliding shutter-cover protects lens from dust and scratches when not in use. Features a 36-inch counter-balanced steel extender with flexible wrist. Control knobs permit locking in place. Convenient front handle provides finger-tip control to raise, lower, and pivot the magnifier wherever desired. Clamps vertically or horizontally to the top or side of any edge. UL and CSA listed.