Triplet Hawk 10x Diamond Loupe by Swiss Axe 10x Triplet Lens corrected for chrimatic and spherical aberration for maximum Depth of View and Clarity Lens Diameter: 0.83 inches (21mm); Extra Low-Dispersion Glass Lens with Anti-Reflection Special Coating Loupe Housing: Solid High-Grade Aluminium Coated with Scratch Resistant Black Anodisation Loupe Weight: 1.66 ounces or 47 Grams Includes Lanyard 17.72 inches (45cm), folded AND Zipper-locked Leather Case