High-performance polycarbonate( PC) lens of excellent impact resistance to block chemicals, strong winds, snow particles and fog; inner and outer layer are with super wear-resistant coating (optidur NC)Users can wear optical glass inside the safety goggles; flat and easy to store in pockets and bagsBreathable vent temple wings design, blocking particles flying from the side; nose pad is designed to comfortably fit the face and has good protection for forehead and cheeksIdeal for woodworking and carpentry, metal and construction work, lab and work, shooting, cycling, racquetball, or anywhere you need to wear PPE eyewearThis product complies with EN166 and ANSIZ87.1 standards, and has passed ISO9002 quality certification; Grey Lens and Amber Lens are also availableSpecification:Material: PCTemple leg length: 118 mm / 4.5 inchGlasses inner width: 144 mm / 5.7 inchGlassed height: 56 mm / 2.2 inchNose spacing: 21 mm / 0.8 inchThe screen is acid and alkali resistant, effectively separating the splash of chemical liquid and protecting the eyes.Package Includes:1 pair of protective glassesNote:Please allow 1-2 mm inaccuracy due to manual measurement. Thanks.