1. Photochromic Transition Aspherical Fiber Lens UV400, Lens Index 1.56;
2. Strength: 0 to +300 by Increments of 25;
3. Frame: Full-Rim Metal Frame;
4. The glasses color does not transit indoors througth the window or inside the car (uv ray is blocked by the window glasses).
5. Comes with a soft case. 
