<strong>MANUFACTURERING TECHNOLOGY</strong><ul> <li>Systemized Quality Control System<br>    - 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. </li> <li>International Standards Certified Raw Materials<br>    - We only use high-grade optical materials, and we are in charge of eye health by strict process control and high manufacture requirements. </li> <li>Customer Satisfaction<br>    - 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. </li></ul> <strong>QUALITY POLICY</strong><ul> <li>Meets and exceeds regulation 21 CFR 801.410 / drop ball tests , ANSI Z87.1 & Z80.3 standards.</li> <li>Exclusive ToughAsNails® Anti-Scratch tech, abrasion resistant durable hard coating tech.</li> <li>Repels against dust, oil and water.</li> <li>100% UV400 protection against UVA & UVB rays.</li> <li>Anti-Glare & enhance clarity (polarized lenses).</li></ul> <strong>NOTE</strong><ul> <li>Please make sure your sunglasses model, as the lenses are not interchangeable between styles.</li> <li>The color may slightly look different depending on your monitor.</li> <li>Please understand that there can be a situations owing to circumstances beyond control which can delay shipping time.</li> <li>ToughAsNails Lenses are aftermarket products, please don't compare ToughAsNails products with original branding products.</li></ul> </ul>