These glasses block dazzling light from reflections and glare, ensuring comfortable vision. They block not only dazzling light but also harmful UV rays, allowing only gentle natural light to pass through. Highly recommended for dealing with surface reflections on the water while fishing, and for strong sunlight in midsummer or reflections off water. ● Lens Color: Gray ● Lens Material: Plastic ● Frame Material: Metal ● Temple Material: Plastic ● Polarization: 99% or more ● Visible Light Transmission: 17% ● UV Transmission: Less than 0.1% Although unused, these have been stored at home, so there may be minor scratches. Please refrain from purchasing if you are looking for a perfect item or are overly concerned about condition.