Michael Kors Ravenna Eyeglasses MK8001 3002 Tortoise/Green/Grey 51 18 135 Plastic frame plastic lens non-polarized Lens width: 51 millimeters Bridge: 18 millimeters Arm: 135 millimeters 5.25" Frame Width 1.5" Lens Height Authentic Michael Kors Designer Eyewear Lightweight & Durable Plastic Frame Womens Rectangular Design Demo Lens ; No Power. Will Accommodate Most Prescriptions