Description: High-performance polycarbonate 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) Can be used as a optical safety glasses by replacing the front lens; flat and easy to store in pockets and bags Flexible and lightweight TR90 legs; nose pad is designed to comfortably fit the face and has good protection for forehead and cheeks Ideal for woodworking and carpentry, metal and construction work, lab and work, shooting, cycling, racquetball, or anywhere you need to wear PPE eyewear This product complies with EN166 and ANSIZ87.1 standards, and has passed ISO9002 quality certification Specification: Material: PC Temple leg length: 122 mm / 4.8 inch Glasses inner width: 135 mm / 5.3 inch Glassed height: 42 mm / 1.7 inch Nose spacing: 20 mm / 0.8 inch The screen is acid and alkali resistant, effectively separating the splash of chemical liquid and protecting the eyes. Package Includes: 1 pair of protective glasses Note: Please allow 1-2 mm inaccuracy due to manual measurement. Thanks