Meets both ANSI Z87.1 and CSA Z94.3 standards Glasses provide 99.9 percent UVA and UVB protection Polycarbonate unilens visitor’s spectacle that can be used alone as a pair of safety glasses, or as an Over-The-Glass for today’s smaller personal eyewear Features a molded nose bridge to fit the vast majority of users and indirect vent temples to reduced fogging. Complies with ANSI, CSA. 6" D x 6" W x 1.75" H