Accessorize any outfit with these square full-frame readers with a keyhole bridge.  UV 100 Protection Highest Quality Scratch-Resistant Aspheric Lenses: thinner and light weight Premium Polycarbonate: technology that provides a sturdier frame Spring Hinges: for maximum comfort and flexibility  Sizing:  Frame width: 138mm Lens width: 45mm Lens height: 37mm Bridge: 18mm Temple: 140mm Lens are an all around strength  Kenna | R-3025-C1-SR Light Tortoise