Bausch + Lomb 81-34-34 Magnifier,10X,Lighted Coddington With its crisp images and 10x magnification, the Bausch Lomb 81-34-34 Illuminated Coddington is an ideal tool for tasks that require precision. A problem sometimes encountered in using a high power magnifier is the lack of sufficient light on the object. A bulb inserted in the groove of the Coddington lens illuminates the object being examined eliminating this problem. Correction in the Coddington magnifiers is achieved through the use of a single thick lens with a central groove diaphragm. This provides for sharp, crisp images. Chromium-plated brass handle with sliding switch and pocket clip measures 6''L (15.2 cm L). Provide good definition and a wide field of view Dimensions Lens Dia. 19.8mm Battery Size AA Lens Diameter 19.8 mm Details Item Illuminated Coddington Focal Distance 1 in, 2.5 cm Power 10X Diopter 40D Battery Type AA Features Provides for Sharp, Crisp Images Product Type Illuminated Coddington SKU: 813434