Retro Circle Round Half Frame Aviator Bar Sunglasses (Matte Black Gold) Acetate frame Polycarbonate lens Non-Polarized Lens width: 55 millimeters Lens height: 50 millimeters Bridge: 18 millimeters 100% Protection Against Harmful UVA/UVB Rays Designer Inspired Frame Lightweight For Superior Comfort Excellent Durability and Craftsmanship 30 DAY MONEY BACK GUARANTEE AND 90 DAY LIMITED WARRANTY AGAINST MANUFACTURER DEFECTS: Our main goal is make our customers happy and provide the best shopping experience; If you are not completely satisfied with our product or your purchase please contact us, we'll be happy to help