Ade Advanced Optics Premium Lighted 10x21 Triplet Lens Color Jeweler's Loupe with Leather Case Professional quality jeweler's tool - improved with LED lighting 21mm triplet color-corrected achromatic glass lens provides distortion-free view without color bias 10X magnification enlarges viewed objects to 1000% original size, stainless steel cover 6 super-bright white LED plus unique ultraviolet light-band, 395nm spectrum Cowhide storage case; lights for 20+ hours on 3 AG7 button-cell (included), batt. compartment key