MANUFACTURERING TECHNOLOGYSystemized Quality Control System - ToughAsNails optics established systemized quality control system and supplies thoroughly qualified products only, and we are challenging zero defect through 100% sampling test for the products shipped. International Standards Certified Raw Materials - We only use high-grade optical materials, and we are in charge of eye health by strict process control and high manufacture requirements. Customer Satisfaction - We produce the lenses analyzing customers various requirements and trends, and we, all employees of ToughAsNails company are doing our best to provide impression beyond customer satisfaction. QUALITY POLICYMeets and exceeds regulation 21 CFR 801.410 / drop ball tests , ANSI Z87.1 & Z80.3 standards.Exclusive ToughAsNails Anti-Scratch tech, abrasion resistant durable hard coating tech.Repels against dust, oil and water.100% UV400 protection against UVA & UVB rays.Anti-Glare & enhance clarity (polarized lenses).NOTEPlease make sure your sunglasses model, as the lenses are not interchangeable between styles.The color may slightly look different depending on your monitor.ToughAsNails Lenses are aftermarket products, please don't compare ToughAsNails products with original branding products.
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