There are black, white and soft frame optional The lenses have PC, PVC optional Four holes for ventilation, chemical splash There are black, white and soft frame optionalThe lenses have PC, PVC optionalFour holes for ventilation, chemical splash, sand ART.NO TA93-2LENS PC,PVCFRAME black, white DESIGN Four holes for ventilation Protective glasses wearing and maintenance:1.Wearers steps(1)Put the ...