General Tools 565 Rectangular Illuminated Magnifier, 2.5X with 5X Bifocal Lens Lens measures 2-inch x 4-inch for distortion-free magnification of large areas Reversible light reflector adapts for right or left-hand use 2.5 power shatterproof lens, with 5 power bifocal insert Replaceable bulb; Power source is 2 AA batteries, included Made in the USA