GemOro Eye Loupe Magnifier LED Light 10X - Jewelers Loupe Loop GemOro's new generation of Eye Loupes features a high quality 10X, distortion free The outer case is chrome plated, the inner case is matte black to insure color correctness. The LED light is powered by three powerful BA389 batteries. (included). Size:2-5/8" long x 1-1/8" wide x 3/4" thick (folded). Lens diameter: 3/4" Plastic carrying case, with a small screwdriver for battery replacement.