Temples adjust to four different lengths. Nose buds secure the glass and prevent slipping 9.75 base curved lens provides full side protection without distracting seams or traditional type side shields. Scratch-resistant polycarbonate lens provides 99% UVA/B/C protection. Pyramex Venture II Safety Eyewear, Universal Size, Anti-Scratch Lens Coating, Silver Mirror Lens, Black Frame, Nylon 6.6 Frame, Polycarbonate Lens, 99 % UV Protection, Adjustable Ratchet Temple, 10.5 mm Bridge, Specifications Met: ANSI P Z87.1, CAN/CSA Z94.3-15, CE EN166, MIL-PRF 32432