Magnum 3G safety glasses Clear lenses Black frame Polycarbonate lenses Ergonomically dimensioned 3-point fit Built-in hinge-stops help eliminate scratches Self-adjusting, ergonomic rubber nose pad with rubber fingers Meet ANSI Z87.1+ impact standard 99.9% UV protection S&W logo on frame Polycarbonate safety glasses protect your eyes from impact, but the glasses deteriorate due to scratches, light, etc., and should be replaced after 2 years.