Square Bifocal Sunglasses for Men with High Nickle Frames. metal frame composite lens non-polarized Lens width: 58 millimeters Lens height: 41 millimeters Bridge: 19 millimeters Arm: 135 millimeters Durable High Nickel MemoryFlex frames Equipped with Durable Spring Hinges to retain the original shape UVA and UVB Protection Rubberized nose pieces for comfortable fit Free Microfiber Cleaning Case