If you’re looking to make a statement, these are the readers for you! These unique readers sport spring hinges to provide additional flexibility and comfort.  Premium Polycarbonate: technology that provides a sturdier frame Anti-Scratch Aspheric Lenses: keeps lenses scratch resistant, thinner and light weight Spring Hinges: for more flexibility and comfort Sizing: Frame width: 144mm Frame height: 52mm Lens width: 48mm Lens height: 40mm Bridge: 21.5mm Temple: 142mm   Kate | R-4023-C5 Tortoise