Large, multi adjustable spectacles, reinforced , visible light transmission: approx. 77% ,color: light gray 1030-1064 D LB7 I LB9 R LB6 LV CE (OD9+) 2000-2200 DI LB2 LV CE (OD2+) 5400 D LB3 I LB4Y R LB2 LV CE (OD4+) 9000-11000 D LB3 I LB4Y R LB2 LV CE (OD4+)