Single lens and adjustable temples ensure reliable performance. Lenses are coated for superior scratch resistance. Lenses provide 99% protection from harmful UV rays. Exceeds ANSI Z87.1-2003 High Impact requirements and CSA Z94.3 standards. Amber lenses are commonly used in indoor, low light applications. Enhances contrast.  Priced per pair. Sold per dozen. Enter quantities of 12, 24, 36, etc. Price discounts based on quantities ordered.