The glasses feature CR-39 lenses coated with HMC for longer-lasting protection from UV400 light and glare. The lenses also boast an anti-reflective attribute, providing up to 99.9% clarity and protecting eyes from nearsightedness from -2.25 to -5. With a 5.4cm lens width and 4.3cm lens height, these glasses offer superior eye protection with a stylish metal alloy frame, delivered in 20-25 days.