Lunarland V2 Readers +2.50 Gray Lens Bifocal Safety Glasses Sb1820R25 Reader Smoke Features:Nose buds secure the glass and prevent slipping while providing a pillow soft fit.Strategic placement of lens insert is out of users direct line of vision. Exceeds ANSI Z87.1 High Impact RequirementsCAN/CSA Z94.3-07 Gray Lens:Commonly used in outdoor applications.Gray +2.5 Reading Lens9.75 base curved lens provides full side protection. Offers protection from excessive glareProvides 99% protection from harmful UV-A and UV-B rays.100% polycarbonate Scratch-resistant lensesAlso available in a Clear Amber Indoor/Outdoor Lens options as well as different size bifocals Note:For return policy in non problem,customer has to response for shipping fee and 15% restore fee,And please return within 14 days