Metal frame plastic lens non-polarized Lens width: 50 millimeters Arm: 135 millimeters PRODUCT DIMENSION – Lens width: 50mm| Lens height: 50mm | Bridge width: 20mm | Frame width: 140mm| Arm length: 135mm PREMIUM MATERIAL – Made by polycarbonate lens and high quality metal, in order to ensure durability and avoid breakage while engaging in recreational activity. Adjustable nose grips for comfort fit Pro Acme Retro Round Metal Frame Clear Lens Glasses Non-Prescription - BKE53U7F8