The B-Line spectacle covers are ideal for Over The Glasses covers. Good for filter ultraviolet radiation, and are particularly recommended during activities where the source of ultraviolet radiation is predominant, such as mercury vapor lamps, actinic or germicides. Low energy impact, resists a 6mm, 0.86g ball at 45m/s. Suitable for use with high speed particles at extreme temperatures. Side shields with a ventilation system. Compatible with all prescription glasses. Anti-fog and Anti-scratch coatings. 99.9% UVA/UVB protection. Weight 40.6g per pair. Frame Type: Rimless. Frame Material: PC. Frame Colour: Translucent. Lens Material: Polycarbonate. Lens Colour: Clear. Lens Coating: Anti-Scratch. Conforms to EN166 and EN170. Frame Markings: EN166 FT CE. Lens Markings: 1 FT CE. Pack of 10.